C3K2076Portable Computing Device

Microsoft Corporation is an equal opportunity employer. 3/21/2024 FCC ID: C3K2076 To whom it may concern: We, the undersigned, hereby authorize Element Materials Technology Group Limited, to act on our behalf in all matters relating to applications for equipment authorization, including the signing of all documents relating to these matters. Any and all acts carried out by Element Materials Technology Group Limited on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to any application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S. C. 862. Sincerely, Michael Boucher Compliance Engineer, Microsoft Corporation.

Date: 4/1/2024 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(5) Attestation FCC ID: C3K2076 1. Microsoft Corporation (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. 2. Microsoft Corporation (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment and is not an affiliate or subsidiary of an entity identified on the Covered List. Sincerely, Michael Boucher Compliance Engineer, Microsoft Corporation.

Date: 3/1/2023 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) Agent Designation Attestation Grantee Code: C3K To whom it may concern: Microsoft Corporation (“the applicant”) as required by section §2.911(d)(7), will also serve as the agent for service of process. The applicant acknowledges that they will maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission- related proceeding involving the equipment. The applicant further acknowledges their responsibility under CFR 47 §2.929(c) to inform the FCC whenever the agent information changes. Company Name: Microsoft Corporation Contact Person: Hasnain Syed FCC FRN: 0006275291 Company US Address: One Microsoft Way, Redmond WA 98052 Email: [email protected] Sincerely, Name: Hasnain Syed Title/Company: Sr. Director EMC/SI/RF Compliance, Microsoft Corporation

Microsoft Corporation is an equal opportunity employer. 4/1/2024 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality for FCC ID: C3K2076 To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR § 0.457, § 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. • Block Diagram • Schematics • Operational Description The above mentioned documents contain detailed system and equipment descriptions that are considered as proprietary information in the operation of the equipment. Public disclosure of the above documents might be harmful to our company and would give competitors an unfair advantage in the market. In additional to above mentioned documents, pursuant to Public Notice DA 04- 1705 of the Commission’s policy, in order to comply with the marketing regulations in 47 CFR §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of Microsoft Corporation is an equal opportunity employer. newly authorized devices, we are requesting the commission to grant short-term confidentiality on the following attachments until 10/1/2024 • External Photos • Test Setup Photos • User’s Manual • Internal Photos It is our understanding that all measurement test reports, FCC ID label format and correspondence during certification review process cannot be granted as confidential documents and the information will be available for public review once the grant of equipment authorization is issued. Sincerely, Michael Boucher Compliance Engineer, Microsoft Corporation.

FCC ID: C3K2076 COMPLIANCE SUMMARY REPORT Approved by: Technical Manager Document S/N: 1M2312190129-02.C3K DUT Type: Portable Computing Device Page 1 of 10 REV 1.1 04/11/2022 Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from Element. If you have any questions or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. ELEMENT MATERIALS TECHNOLOGY (formerly PCTEST) 7185 Oakland Mills Road, Columbia, MD 21046 USA Tel. +1.410.290.6652 / Fax +1.410.290.6654 http://www.element.com COMPLIANCE SUMMARY REPORT Applicant Name: Test Site/Location: Microsoft Corporation Element Washington DC LLC, Columbia, MD, USA One Microsoft Way Document Serial No.: Redmond, WA 98052 USA 1M2312190129-02.C3K Microsoft Corporation FCC ID: C3K2076 APPLICANT: MICROSOFT CORPORATION Report Type: DUT Type: Compliance Summary Portable Computing Device Model: 2076 EAR-Controlled Data: This document contains technical data whose export and reexport/ retransfer may be subject to control by the U.S. Department of Commerce under the Export Administration Act and the Export Administration Regulations. The Department of Commerce’s prior written approval may be required for the export or re-export/retransfer of such technical data to any foreign person, foreign entity or foreign organization whether in the United States or abroad. FCC ID: C3K2076 COMPLIANCE SUMMARY REPORT Approved by: Technical Manager Document S/N: 1M2312190129-02.C3K DUT Type: Portable Computing Device Page 2 of 10 REV 1.1 04/11/2022 Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from Element. If you have any questions or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. TABLE OF CONTENTS 1 STRATEGY FOR COMPLIANCE DEMONSTRATION 3 1.1 RF Exposure Evaluation Strategy 3 1.2 Nomenclature 4 1.3 Bibliography 4 2 TIME AVERAGING ALGORITHM 4 2.1 Algorithm Description 5 2.2 Basic concept of the algorithm 6 2.3 Configurable Parameters 8 3 DUT DESCRIPTION 9 3.1 Device Overview 9 4 COMPLIANCE SUMMARY 10 4.1 RF Exposure Compliance Summary 10 FCC ID: C3K2076 COMPLIANCE SUMMARY REPORT Approved by: Technical Manager Document S/N: 1M2312190129-02.C3K DUT Type: Portable Computing Device Page 3 of 10 REV 1.1 04/11/2022 Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from Element. If you have any questions or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. 1 STRATEGY FOR COMPLIANCE DEMONSTRATION 1.1 RF Exposure Evaluation Strategy The FCC RF exposure limits defined based on time-averaged RF exposure. The device under test (DUT) uses the Qualcomm FastConnect feature to control and manage transmitting power in real time and to ensure at all times the time-averaged RF exposure is in compliance with the FCC requirement via FastConnect TAS for WLAN operations. Additionally, this device supports BT/NFC technologies but the output power of these modems is not controlled by the TAS algorithm. Demonstrating compliance of DUT enabled with Qualcomm FastConnect feature is completed in three parts: 0. RF Exposure Compliance Test Report Part 0: SAR Characterization The SAR Characterization, denoted as SAR Char, determines the power limit that meets FCC exposure requirement after accounting for device design related uncertainties for each supported radio configuration and RF exposure usage scenario. The determined power limits will be loaded and stored in the EUT via the Board Data File (BDF), and then used as inputs for TAS to operate. For WLAN SAR Char is derived from SAR test measurements and conducted power measurements to determine P Limit for each technology/band. The P Limit represents the maximum time-averaged power level for the corresponding radio/antenna configuration. 1. RF Exposure Compliance Test Report Part 1: Test in Static Transmission Condition Part 1 demonstrates that DUT meets FCC SAR limits when transmitting at pre-determined maximum time-averaged power level: PLimit for WLAN. The SAR measurement in Part 1 is under static transmission condition. The compliance for BT radio is demonstrated at a fixed power level (fixed = maximum RF tune-up level or power-back off level). The exposure from the simultaneous transmission of WLAN is evaluated in Part 2 report. 2. RF Exposure Compliance Test Report Part 2: Test in Dynamic Transmission Condition Part 2 demonstrates compliance in Tx varying transmission conditions and validates Qualcomm FastConnect algorithm. The test results reported in Part 2 demonstrates that DUT complies with FCC RF exposure requirement under Tx varying transmission scenarios, thereby validity of Qualcomm FastConnect algorithm. FCC ID: C3K2076 COMPLIANCE SUMMARY REPORT Approved by: Technical Manager Document S/N: 1M2312190129-02.C3K DUT Type: Portable Computing Device Page 4 of 10 REV 1.1 04/11/2022 Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from Element. If you have any questions or have an enquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. 1.2 Nomenclature Applicable Technologies Term Description WLAN P Limit Power level that corresponds to the exposure design target (SAR_design_target) after account…

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FCC ID: C3K2076 SAR EVALUATION REPORT Approved by: Technical Manager Document S/N: DUT Type: Page 1 of 40 1M2312190129-01.C3K Portable Computing Device Applicant Name: Date of Testing: Microsoft Corporation 03/12/2024 – 04/01/2024 One Microsoft Way Test Site/Location: Redmond, WA 98052 USA Element Washington DC LLC, Columbia, MD, USA Document Serial No.: 1M2312190129-01.C3K F C C I D : C3K2076 A P P L I C A N T : MICO ROSO FT CO RPOR AT ION DUT Type: Portable Computing Device Application Type: Certification FCC Rule Part(s): CFR §2.1093 Model: Reference FCC ID: 2076 C3K2085 Note: This revised Test Report supersedes and replaces the previously issued test report on the same subject device for the same type of testing as indicated. Please discard or destroy the previously issued test report(s) and dispose of it accordingly. Note: This table above includes test data from RF exposure technical report S/N: 1M2312190129-01.C3K per FCC TCB workshop for data referencing of closely related product APPENDIX D (FCC ID C3K2085) This wireless portable device has been shown to be capable of compliance for localized specific absorption rate (SAR) for uncontrolled environment/general population exposure limits specified in ANSI/IEEE C95.1-1992 and has been tested in accordance with the measurement procedures specified in Section 1.8 of this report; for North American frequency bands only. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. Test results reported herein relate only to the item(s) tested. The SAR Tick is an initiative of the Mobile & Wireless Forum (MWF). While a product may be considered eligible, use of the SAR Tick logo requires an agreement with the MWF. Further details can be obtained by emailing: [email protected]. 1g Laptop (W/kg) 1g Tablet (W/kg) DTS 2.4 GHz WIFI 2412 - 2472 MHz <0.1 0.71 NII 5 GHz WIFI U-NII-1: 5180 - 5240 MHz U-NII-2A: 5260 - 5320 MHz U-NII-2C: 5500 - 5720 MHz U-NII-3: 5745 - 5825 MHz U-NII-4: 5845 - 5885 MHz <0.1 0.67 6CD 6 GHz WIFI U-NII-5: 5935 - 6415 MHz U-NII-6: 6435 - 6515 MHz U-NII-7: 6535 - 6855 MHz U-NII-8: 6875 - 7115 MHz <0.1 0.62 DSS 2.4 GHz Bluetooth 2402 - 2480 MHz <0.1 0.79 <0.1 1.59 SAR Equipment Class Band & Mode Tx Frequency Simultaneous SAR per KDB 690783 D01v01r03: Laptop Tablet 6CD 6 GHz WIFI U-NII-5: 5935 - 6415 MHz U-NII-6: 6435 - 6515 MHz U-NII-7: 6535 - 6875 MHz U-NII-8: 6895 - 7115 MHz 2.32 4.83 7.01 Reported PD (W/m^2) Tx Frequency APD (W/m^2) Equipment Class Band & Mode ELEMENT Washington DC LLC 18855 Adams Ct, Morgan Hill, CA 95307 USA Tel. +1.410.290.6652 / Fax +1.410.290.6654 http://www.element.com SAR EVALUATION REPORT FCC ID: C3K2076 SAR EVALUATION REPORT Approved by: Technical Manager Document S/N: DUT Type: Page 2 of 40 1M2312190129-01.C3K Portable Computing Device T A B L E O F C O N T E N T S 1 DEVICE UNDER TEST .................................................................................................................................3 2 INTRODUCTION ........................................................................................................................................ 15 3 DOSIMETRIC ASSESSMENT ................................................................................................................... 16 4 TEST CONFIGURATION POSITIONS....................................................................................................... 17 5 RF EXPOSURE LIMITS ............................................................................................................................. 18 6 FCC MEASUREMENT PROCEDURES ..................................................................................................... 20 7 RF CONDUCTED POWERS ...................................................................................................................... 23 8 SYSTEM VERIFICATION ........................................................................................................................... 25 9 SAR DATA SUMMARY .............................................................................................................................. 30 10 FCC MULTI-TX AND ANTENNA SAR CONSIDERATIONS ...................................................................... 33 11 EQUIPMENT LIST ...................................................................................................................................... 34 12 MEASUREMENT UNCERTAINTIES.......................................................................................................... 35 13 CONCLUSION ............................................................................................................................................ 38 14 REFERENCES ........................................................................................................................................... 39 APPENDIX A: SAR TISSUE SPECIFICATIONS APPENDIX B: DUT ANTENNA DIAGRAM & SAR TEST SETUP PHOTOGRAPHS APPENDIX C: PROBE AND DIPOLE CALIBRATION CERTIFICATES APPENDIX D: FCC ID C3K2085 SAR TEST REPORTS PART 0, PART 1, PART 2 FCC ID: C3K2076 SAR EVALUATION REPORT Approved by: Technical Manager Document S/N: DUT Type: Page 3 of 40 1M2312190129-01.C3K Portable Computing Device 1 D E V I C E U N D E R T E S T 1.1 Device Overview 1.2 Data Referencing Reference Device Variant Device Key differences FCC ID: C3K2085 FCC ID: C3K2076 Removed components for NFC (see KDB Inquiry 731334 exhibit for Data Referencing) Equipment Class Mode Data Referencing Comments DTS 2.4 GHz WIFI Y See SAR Report Section 9.1 for spot-check data NII 5 GHz WIFI Y See SAR Report Section 9.1 for spot-check data 6CD 6 GHz WIFI Y See SAR Report Section 9.1 for spot-check data DSS 2.4 GHz BT Y See SAR Report Section 9.1 for…

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FCC ID: C3K2076 SAR EVALUATION REPORT Approved by: Technical Manager DUT Type: Portable Computing Device APPENDIX A: Page 1 of 3 A P P E N D I X A : S A R T I S S U E S P E C I F I C A T I O N S Measurement Procedure for Tissue verification: 1) The network analyzer and probe system was configured and calibrated. 2) The probe was immersed in the tissue. The tissue was placed in a nonmetallic container. Trapped air bubbles beneath the flange were minimized by placing the probe at a slight angle. 3) The complex admittance with respect to the probe aperture was measured 4) The complex relative permittivity ε ’ can be calculated from the below equation (Pournaropoulos and Misra): where Y is the admittance of the probe in contact with the sample, the primed and unprimed coordinates refer to source and observation points, respectively, ,  is the angular frequency, and . Figure A-1 Note: Liquid recipes are proprietary SPEAG. Since the composition is approximate to the actual liquids utilized, the manufacturer tissue-equivalent liquid data sheets are provided below. ( )          −  = b a b a r r d d d r r j a b j Y            0 2 / 1 0 ' 0 2 0 ) ( exp cos ln 2        −  + = cos 2 2 2 2 r 1 − = j FCC ID: C3K2076 SAR EVALUATION REPORT Approved by: Technical Manager DUT Type: Portable Computing Device APPENDIX A: Page 2 of 3 Figure A-2 600 – 10000 MHz Head Tissue Equivalent Matter FCC ID: C3K2076 SAR EVALUATION REPORT Approved by: Technical Manager DUT Type: Portable Computing Device APPENDIX A: Page 3 of 3 Figure A-3 5– 250 MHz Head Tissue Equivalent Matter

A P P E N D I X C : P R O B E A N D D I P O L E C A L I B R A T I O N C E R T I F I C A T E S

Object: Date Issued: Page 1 of 3 D2450V2 – SN: 981 11/10/2023 Certification of Calibration Object D2450V2 – SN: 981 Calibration procedure(s) Procedure for Calibration Extension for SAR Dipoles. Extension Calibration date: 11/10/2023 Description: SAR Validation Dipole at 2450 MHz. Calibration Equipment used: Measurement Uncertainty = ±23% (k=2) Name Function Signature Calibrated By: Tho Tong Test Engineer Approved By: Greg Snyder Executive VP of Operations, Regulatory Manufacturer Model Description Cal Date Cal Interval Cal Due Serial Number Agilent N5182A MXG Vector Signal Generator 11/30/2022Annual 11/30/2023MY47420603 Amplifier Research 15S1G6 Amplifier CBTN/A CBT343971 Anritsu MA2411B Pulse Power Sensor 1/10/2023Annual 1/10/20241315051 Anritsu ML2496A Power Meter 6/15/2023Annual 6/15/20241138001 Control Company 4040Therm./ Clock/ Humidity Monitor 1/17/2023Biennial 1/17/2024160574418 Control Company 4353L ong Stem Thermometer 9/15/2022Biennial 9/15/2024221767767 Mini-Circuits BW-N20W5+ DC to 18 GHz Precision Fixed 20 dB Attenuator CBTN/A CBTN/A Mini-Circuits NLP-2950+ Low Pass Filter DC to 2700 MHz CBTN/A CBTN/A Narda 4772-3 Attenuator (3dB) CBTN/A CBT9406 Pasternack PE5011-1Torque Wrench 12/21/2021Biennial 12/21/202382475 Mini-CircuitsZHDC-16-63-S+Coupler CBTN/A CBTN/A Anritsu MS46322AVector Network Analyzer 9/6/2023Biennial 9/6/202582288 SPEAG DAK-3.5 Dielectric Assessment Kit 11/13/2023Annual 11/13/20241277 Keysight Technologies85033EStandard Mechanical Calibration Kit (DC to 9GHz, 3.5mm)11/11/2022Annual11/11/2023MY53401181 SPEAGEX3DV4SAR Probe6/15/2023Annual6/15/20247409 SPEAG DAE4 Dasy Data Acquisition Electronics 6/15/2023Annual6/15/20241334 ELEMENT MATERIALS TECHNOLOGY (formerly PCTEST) 7185 Oakland Mills Road, Columbia, MD 21046 USA Tel. +1.410.290.6652 / Fax +1.410.290.6654 http://www.element.com Object: Date Issued: Page 2 of 3 D2450V2 – SN: 981 11/10 /2023 DIPOLE CALIBRATION EXTENSION Per KDB 865664 D01, calibration intervals of up to three years may be considered for reference dipoles when it is demonstrated that the SAR target, impedance and return loss of a dipole have remained stable according to the following requirements: 1. The measured SAR does not deviate more than 10% from the target on the calibration certificate. 2. The return-loss does not deviate more than 20% from the previous measurement and meets the required 20dB minimum return-loss requirement. 3. The measurement of real or imaginary parts of impedance does not deviate more than 5Ω from the previous measurement. The following dipole was checked to pass the above 3 requirements to have 3-year calibration period from the calibration date: Calibration Date Extension Date Certificate Electrical Delay (ns) Certificate SAR Target Head (1g) W/kg @ 20.0 dBm Measured Head SAR (1g) W/kg @ 20.0 dBm Deviation 1g (%) Certificate SAR Target Head (10g) W/kg @ 20.0 dBm Measured Head SAR (10g) W/kg @ 20.0 dBm Deviation 10g (%) Certificate Impedance Head (Ohm) Real Measured Impedance Head (Ohm) Real Difference (Ohm) Real Certificate Impedance Head (Ohm) Imaginary Measured Impedance Head (Ohm) Imaginary Difference (Ohm) Imaginary Certificate Return Loss Head (dB) Measured Return Loss Head (dB) Deviation (%)PASS/FAIL 11/25/202111/10/20231.1635.395.532.60%2.542.560.79%53.853.10.75.84.41.4-23.6-25.7-9.00%PASS Object: Date Issued: Page 3 of 3 D2450V2 – SN: 981 11/10 /2023 Impedance & Return-Loss Measurement Plot for Head TSL Object:Date Issued: Page 1 of 4 D2450V2 – SN: 719 08/10/2022 Certification of Calibration Object D2450V2 – SN: 719 Calibration procedure(s) Procedure for Calibration Extension for SAR Dipoles. Extension Calibration date: 08/10/2022 Description: SAR Validation Dipole at 2450 MHz. Calibration Equipment used: Measurement Uncertainty = ±23% (k=2) Name Function Signature Calibrated By: Bizunesh Baldinazzo Test Engineer Approved By: Kaitlin O’Keefe Senior Technical Manager Manufacturer Model Description Cal Date Cal Interval Cal Due Serial Number Agilent N5182A MXG Vector Signal Generator 6/21/2022 Annual 6/21/2023MY47420651 Amplifier Research 15S1G6 Amplifier CBTN/A CBT343971 Anritsu MA2411B Pulse Power Sensor 9/21/2021 Annual 9/21/20221339008 Anritsu MA2411B Pulse Power Sensor 10/21/2021 Annual 10/21/20221339027 Anritsu ML2496A Power Meter 11/29/2021 Annual 11/29/20221840005 Control Company 4040Therm./ Clock/ Humidity Monitor 3/12/2021 Biennial 3/12/2023210202100 Control Company 4352Ultra Long Stem Thermometer 10/25/2021 Annual 10/25/2022200645916 Control Company 4353Long Stem Thermometer 10 / 28/2020 Biennial 10/28/2022200670653 MiniCircuits VLF‐6000+ Low Pass Filter CBTN/A CBTN/A Mini‐Circuits BW‐N20W5+ DC to 18 GHz Precision Fixed 20 dB Attenuator CBTN/A CBTN/A Mini‐Circuits NLP‐2950+ Low Pass Filter DC to 2700 MHz CBTN/A CBTN/A Narda 4772‐3 Attenuator (3dB) CBTN/A CBT9406 Pasternack NC‐100 Torque Wrench 3/19/2022 Annual 3/ 19/2023N/A Mi ni‐CircuitsZHDC‐16‐63‐S+Coupler CBTN/A CBTN/A Rohde & Schwarz ZNLE6Vector Network Analyzer 10/20/2021 Annual 10/20/2022101307 SPEAG DAK‐3.5 Dielectric Assessment Kit 8/18/2021 Annual 8/18/20221041 Keysight Technologies85033EStandard Mechanical Calibration Kit (DC to 9GHz, 3.5mm)9/27/2021 Annual 9/27/2022MY53401181 SPEAG EX3DV4 SAR Probe 2/22/2022 Annual 2/22/20237417 SPEAG DAE4 Dasy Data Acquisition Electronics 2/22/2022 Annual 2/22/2023665 ELEMENT MATERIALS TECHNOLOGY (formerly PCTEST) 7185 Oakland Mills Road, Columbia, MD 21046 USA Tel. +1.410.290.6652 / Fax +1.410.290.6654 http://www.element.com Object: Date Issued: Page 2 of 4 D2450V2 – SN: 719 08/10/2022 DIPOLE CALIBRATION EXTENSION Per KDB 865664 D01, calibration intervals of up to three years may be considered for reference dipoles when it is demonstrated that the SAR target, impedance and return loss of a dipole have remained stable according to the following requirements: 1. The measured SAR does not deviate more than 10% from the target on the calibration certificate. 2. The return‐loss does not deviate more than 20…

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FCC ID: C3K2076 MAXIMUM PERMISSIBLE EXPOSURE REPORT Approved by: Technical Manager Test Report S/N: Test Dates: EUT Type: Page 1 of 6 1M2312190129-16.C3K 01/03/2024 - 03/11/2024 Portable Computing Device © 2024 ELEMENT V «VerNo» «VerDate» Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without written permission from Element. If you have any questions about this or have an inquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. Applicant Name: Microsoft Corporation One Microsoft Way Redmond, WA 98052 United States Date of Testing: 01/03/2024 - 03/11/2024 Test Report Issue Date: 04/11/2024 Test Site/Location: Element Lab. Columbia, MD, USA Test Report Serial No.: 1M2312190129-16.C3K FCC ID: C3K2076 APPLICANT: Microsoft Corporation EUT Type: Portable Computing Device FCC Classification: Digital Transmission System (DTS) Part 15 Spread Spectrum Transmitter (DSS) Unlicensed National Information Infrastructure TX (NII) 15E 6 GHz Low Power Dual Client (6CD) FCC Rule Part: FCC Part 1 (§1.1310) and Part 2 (§2.1091) Test Procedure(s): KDB 447498 D01 v06 This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in FCC KDB 447498 D01. Test results reported herein relate only to the item(s) tested. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. RJ Ortanez Executive Vice President ELEMENT WASHINGTON DC LLC 7185 Oakland Mills Road, Columbia, MD 21046 USA Tel. 410.290.6652 / Fax 410.290.6654 http://www.element.com RF EXPOSURE EVALUATION Maximum Permissible Exposure (MPE) FCC ID: C3K2076 MAXIMUM PERMISSIBLE EXPOSURE REPORT Approved by: Technical Manager Test Report S/N: Test Dates: EUT Type: Page 2 of 6 1M2312190129-16.C3K 01/03/2024 - 03/11/2024 Portable Computing Device © 2024 ELEMENT V «VerNo» «VerDate» Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without written permission from Element. If you have any questions about this or have an inquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. T A B L E O F C O N T E N T S 1.0 RF EXPOSURE EVALUATION – MAXIMUM PERMISSIBLE EXPOSURE (MPE) ........................ 3 1.1 Introduction ............................................................................................................................................ 3 1.2 EUT Description ..................................................................................................................................... 3 1.3 Procedure .............................................................................................................................................. 4 2.0 CONCLUSION ................................................................................................................................. 6 FCC ID: C3K2076 MAXIMUM PERMISSIBLE EXPOSURE REPORT Approved by: Technical Manager Test Report S/N: Test Dates: EUT Type: Page 3 of 6 1M2312190129-16.C3K 01/03/2024 - 03/11/2024 Portable Computing Device © 2024 ELEMENT V «VerNo» «VerDate» Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without written permission from Element. If you have any questions about this or have an inquiry about obtaining additional rights to this report or assembly of contents thereof, please contact [email protected]. 1.0 R F E X P O S U R E E V A L U A T I O N – M A X I M U M P E R M I S S I B L E E X P O S U R E ( M P E ) 1.1 Introduction This document is prepared to show compliance with the RF Exposure requirements as required in §1.1310 of the FCC Rules and Regulations. The limit for Maximum Permissible Exposure (MPE), specified in FCC §1.1310, is listed in Table 1-1. According to FCC §1.1310: the criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in §1.1307(b). Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (Minutes) (A) Limits For Occupational / Control Exposures (f = frequency) 30-300 61.4 0.163 1.0 6 300-1500 ... ... f/300 6 1500-100,000 ... ... 5.0 6 (B) Limits For General Population / Uncontrolled Exposure (f = frequency) 30-300 27.5 0.073 0.2 30 300-1500 ... ... f/1500 30 1500-100,000 ... ... 1.0 30 Table 1-1. Limits for Maximum Permissible Exposure (MPE) 1.2 EUT Description The Microsoft Corporation FCC ID: C 3 K 2 076 is a Portable Computing Device containing 2.4GHz transmit output ports, 5GHz, and 6GHz transmit output ports capable for transmitting 802.11a/b/g/n/ac/ax/be modes operation. This MPE evaluation will cover RF Exposure for simultaneous transmission modes of transmitters operating at maximum power. EUT: Company Name: Microsoft Corporation FCC ID: C3K2076 Antenna(s): Please see technical description for list of available antenna options FCC ID: C3K2076 MAXIMUM PERMISSIBLE EXPOSURE REPORT Approved by: Technical Manager Test Report S/N: Test Dates: EUT Type: Page 4 of 6 1M2312190129-16.C3K 01/03/2024 - 03/11/2024 Portable Computing Device © 2024 ELEMENT V «VerNo» «VerDate» Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any…

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FCC ID: C3K2085 PART 0 SA…

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