RAS-MT7921K2TX 11ax (WiFi6E) + BT/BLE Combo Card

© 2020 MediaTek Inc. This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. Specifications are subject to change without notice. Version: V0. 1 Release Date: 2020-12-14 MT7921K Install User Guideline MT7921K Install User Guideline: Part-I Confidential B MediaTek Confidential © 2020 MediaTek Inc. Page 2 of 17 This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. Document Revision History Version Date Author Change List V0.1 20201214 Jane Initial draft release. Me dia Tek Co nfid enti al A MT7921K Install User Guideline: Part-I Confidential B MediaTek Confidential © 2020 MediaTek Inc. Page 3 of 17 This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. Table of Contents Document Revision History ....................................................................................................................... 2 Table of Contents ..................................................................................................................................... 3 1 System overview ............................................................................................................................ 4 1.1 General Description ............................................................................................................... 4 2 Driver install .................................................................................................................................. 5 2.1 How to install driver .............................................................................................................. 5 2.1.1 Windows Security for new signature mechanism ..................................................... 6 2.1.2 Windows 10 install note ........................................................................................ 7 2.1.3 Install Windows driver ........................................................................................... 8 3 General Information & Integration Instructions .................................................................... 11 3.1 General Description of MT7921K ..................................................................................... 11 3.2 Antenna information ......................................................................................................... 12 3.3 Host Integration instructions ............................................................................................. 13 3.4 Host product testing guidance .......................................................................................... 13 MT7921K Install User Guideline: Part-I Confidential B MediaTek Confidential © 2020 MediaTek Inc. Page 4 of 17 This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. 1 System overview 1.1 General Description MT7921K chip is highly integrated single chip which have built in 2x2 dual-band wireless LAN and Bluetooth combo radio. WiFi works on the ISM band, which means many other devices such as microwave oven, radar, and Bluetooth use the same frequencies and channels with WiFi devices. Therefore, governments make regulations to avoid interference between devices. The specifications include usable channels, scan rule, and transmit power. MT7921K Install User Guideline: Part-I Confidential B MediaTek Confidential © 2020 MediaTek Inc. Page 5 of 17 This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. 2 Driver install 2.1 How to install driver Please follow the procedure listed in below to install driver § 1 st : Update Windows security package to register signature mechanism § 2 nd : Install Windows driver. MT7921K Install User Guideline: Part-I Confidential B MediaTek Confidential © 2020 MediaTek Inc. Page 6 of 17 This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. 2.1.1 Windows Security for new signature mechanism If you are the 1 st time to use this driver, you should update Windows Security for new signature mechanism at first. Please follow below link to install this software. https://www.microsoft.com/en-us/download/details.aspx?id=46148 For windows 7 x64 example: MT7921K Install User Guideline: Part-I Confidential B MediaTek Confidential © 2020 MediaTek Inc. Page 7 of 17 This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. 2.1.2 Windows 10 install note If manufacturer can’t install the driver in Windows 10 due to driver integrity check, try to disable the integrity check to allow installation. • Disable Driver Integrity Check 1. Open cmd as Administrator. 2. Execute ‘bcdedit /set nointegritychecks on’ 3. Reboot 4. Then install again. If still fail, try do ‘Disable Secure Boot’ below. NOTE: Re-enable the driver integrity check by executing ‘bcdedit /set nointegritychecks off’ and then rebooting. • Disable Secure Boot Please refer to: https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/disabling-secure-boot MT7921K Install User Guideline: Part-I Confidential B MediaTek Confidential © 2020 MediaTek Inc. Page 8 of 17 This document contains information that is proprietary to MediaTek Inc. Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited. 2.1.3 Install Windows driver MT7921K supports PCIE interfa…

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MediaTek Inc. No.1, Duxing 1st Rd., East District, Hsinchu City 300, Taiwan We, MediaTek Inc. declare that the device does not support any non-US channels in all the operational mode(s) for the following product. FCC ID: RAS-MT7921K If you should have any question(s) regarding this declaration, please don’t hesitate to contact us. Thank you! __________________________________ Stella Chang/ Business Marketing Manager Media Tek Inc. Tel.: + 886-3-5600868 Fax: + 886-3-6662673 E-mail: [email protected]

MediaTek Inc. No.1, Duxing 1st Rd., East District, Hsinchu City 300, Taiwan FCC ID: RAS-MT7921K To the attention of Federal Communications Commission Authorization and Evaluation Division Permanent Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Block Diagram Operational Description Software Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely yours, ----------------------------------- Stella Chang/ Business Marketing Manager MediaTek Inc. Tel.: + 886-3-5600868 Fax: + 886-3-6662673 E-mail: [email protected]

MediaTek Inc. No.1, Duxing 1st Rd., East District, Hsinchu City 300, Taiwan FCC ID: RAS-MT7921K To the attention of Federal Communications Commission Authorization and Evaluation Division Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we request short-term confidential treatment for the following information until 180 days after the Grant Date of Equipment Authorization in order to ensure sensitive business information remains confidential until the actual marketing of the device: External photos Test Setup photos User’s manual Internal Photos Sincerely yours, ----------------------------------- Stella Chang/ Business Marketing Manager MediaTek Inc. Tel.: + 886-3-5600868 Fax: + 886-3-6662673 E-mail: [email protected]

MediaTek Inc. No.1, Duxing 1st Rd., East District, Hsinchu City 300, Taiwan FCC ID: RAS-MT7921K AUTHORIZATION LETTER To Whom It May Concern: MediaTek Inc. hereby authorizes Andrea Hsia/ Supervisor of Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch (“BV CPS Taoyuan”), to act on its behalf in all matters relating to the Federal Communication Commission (“FCC”) application for equipment authorization in connection with the FCC ID listed above, including signing of all documents relating to these matters. Any and all acts carried out by Andrea Hsia/ Supervisor of BV CPS Taoyuan on MediaTek Inc.’s behalf, within the scope of the powers granted herein, shall have the same effect as acts of its own. If you have any questions regarding the authorization, please don’t hesitate to contact us. Sincerely yours, ----------------------------------------------- Stella Chang/ Business Marketing Manager MediaTek Inc. Tel.: + 886-3-5600868 Fax: + 886-3-6662673 E-mail: [email protected]

MediaTek Inc. No.1, Dusing 1st Rd., Hsinchu Science Park Date: 2020-01-09 A UTHORIZ A TION LETTER To whom it may concern: I, the undersigned Siegfried Chang of MediaTek Inc., hereby authorize Stella Chang of MediaTek Inc. to act on my behalf in all matters relating to all processes required in FCC and any communication needed with the national authority. Any and all acts carried out by Stella Chang on my behalf shall have the same effects as acts of our own. This agreement is valid until permanent. If you have any questions regarding the authorization, please don’t hesitate to contact us. Sincerely yours, ----------------------------------- Siegfried Chang/ Manager MediaTek Inc. Tel.: + 886-3-5600868 Fax: + 886-3-6662673 E-mail: [email protected]

FCC ID: RAS-MT7921K Modular Approval Request Letter Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch October 21, 2020 Dear Application Examiner, MediaTek Inc., 2TX 11ax (WiFi6E) + BT/BLE Combo Card, FCC ID: RAS-MT7921K would like to have your authorization as a modular approval specific to the mobile RF exposure condition. The requirements of KDB 996369 have been met and shown on the following statements. 1. “The modular transmitter must have its own RF shielding.” The radio portion of this module has been shielded, please see exhibition External Photo. 2. “The modular transmitter must have buffered modulation/data inputs.” The EUT has buffered data inputs, it is integrated in chip MT7921. 3. “The modular transmitter must have its own power supply regulation.” The part number of this regulator is MT7921. 4. “The modular transmitter must comply with the antenna requirements of section 15.203 and 15.204(C).” The EUT meets the FCC antenna requirements. The spurious emission, unique antenna connector and photo of antennas are shown in the test report and photo exhibits. 5. “The modular transmitter must be tested in a stand-alone configuration” The EUT was tested in a stand-alone configuration via a USB extender. Please see section Photographs of Test Configuration in the test report, the EUT was plugged in this extender. 6. “The modular transmitter must be labeled with its own FCC ID number.” Please see exhibition Label Sample for the FCC ID of this module. And also in the exhibition Users Manual, there are instructions give to the OEM on how to label the end product. FCC ID: RAS-MT7921K 7. “The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements.” The EUT is compliant with all applicable FCC rules. Detail instructions for maintaining compliance are given in the Users Manual. 8. “The modular transmitter must comply with any applicable RF exposure requirements.” The EUT is compliant with all applicable RF exposure requirements. RF Exposure is addressed in the RF exposure exhibition. Please contact me if you have any further questions. Thanks for your attention. Best Regards, Andrea Hsia / Supervisor Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Tel: 886-3-318 3232 Fax: 886-3-327 0892 Email: [email protected]

Reference No.: 200814E08-1 Page 1/3 CONSTRUCTION PHOTOS OF EUT EUT Reference No.: 200814E08-1 Page 2/3 Reference No.: 200814E08-1 Page 3/3

Label Location EuT Front side

For FCC, IC, NCC, CE

Reference No.: 200814E08-2 Page 1/8 CONSTRUCTION PHOTOS OF EUT Reference No.: 200814E08-2 Page 2/8 Ant. Set 1 Reference No.: 200814E08-2 Page 3/8 Reference No.: 200814E08-2 Page 4/8 Reference No.: 200814E08-2 Page 5/8 Ant. Set 2 Reference No.: 200814E08-2 Page 6/8 Reference No.: 200814E08-2 Page 7/8 Ant. Set 3 Reference No.: 200814E08-2 Page 8/8

Report No.: SA200814E08 Page No. 1 / 7 Report Format Version: 6.1.1 RF Exposure Report Report No.: SA200814E08 FCC ID: RAS-MT7921K Test Model: MT7921K Received Date: Aug. 14, 2020 Test Date: Sep. 26, 2020 Issued Date: Oct. 16, 2020 Applicant: MediaTek Inc. Address: No. 1, Dusing 1st Rd., Hsinchu Science Park Hsinchu City 30078 Taiwan Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwa. Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan. FCC Registration / Designation Number: 723255 / TW2022 This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. Report No.: SA200814E08 Page No. 2 / 7 Report Format Version: 6.1.1 Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity ...................................................................................................................... 4 2 RF Exposure .......................................................................................................................................... 5 2.1 Limits for Maximum Permissible Exposure (MPE) .............................................................................. 5 2.2 MPE Calculation Formula ................................................................................................................... 5 2.3 Classification ....................................................................................................................................... 5 2.4 Antenna Gain ...................................................................................................................................... 6 2.5 Calculation Result of Maximum Conducted Power ............................................................................. 7 Report No.: SA200814E08 Page No. 3 / 7 Report Format Version: 6.1.1 Release Control Record Issue No. Description Date Issued SA200814E08 Original release. Oct. 16, 2020 Report No.: SA200814E08 Page No. 4 / 7 Report Format Version: 6.1.1 1 Certificate of Conformity Product: 2TX 11ax (WiFi6E) + BT/BLE Combo Card Brand: MediaTek Test Model: MT7921K Sample Status: ENGINEERING SAMPLE Applicant: MediaTek Inc. Test Date: Sep. 26, 2020 Standards: FCC Part 2 (Section 2.1091) KDB 447498 D01 General RF Exposure Guidance v06 IEEE C95.3-2002 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s EMC characteristics under the conditions specified in this report. Prepared by : , Date: Oct. 16, 2020 Cherry Chuo / Specialist Approved by : , Date: Oct. 16, 2020 Clark Lin / Technical Manager Report No.: SA200814E08 Page No. 5 / 7 Report Format Version: 6.1.1 2 RF Exposure 2.1 Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (minutes) Limits For General Population / Uncontrolled Exposure 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f 2 )* 30 30-300 27.5 0.073 0.2 30 300-1500 ... ... f/1500 30 1500-100,000 ... ... 1.0 30 f = Frequency in MHz ; *Plane-wave equivalent power density 2.2 MPE Calculation Formula Pd = (Pout*G) / (4*pi*r 2 ) where Pd = power density in mW/cm 2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm 2.3 Classification The antenna of this product, under normal use condition, is at least 20cm away from the body of the user. So, this device is classified as Mobile Device. Report No.: SA200814E08 Page No. 6 / 7 Report Format Version: 6.1.1 2.4 Antenna Gain Ant. Set RF Chain No. Brand Model Ant. Net Gain (dBi) Freq. Range (GHz) Ant. Type Connector Type Cable Length (mm) Cable Loss (dB) Excluding Cable Loss Ant. Gain (dBi) 1 Chain0 Cortec AN2450-4902B RS 2.42 3.87 2.4~2.4835 5.15~5.85 Dipole R-SMA 150 2.4~2.4835GHz : 0.5 5.15~5.85GHz : 0.8 2.92 4.67 Chain1 Cortec AN2450-4902B RS 2.42 3.87 2.4~2.4835 5.15~5.85 Dipole R-SMA 150 2.4~2.4835GHz : 0.5 5.15~5.85GHz : 0.8 2.92 4.67 2 Chain0 PSA RFMTA340718 EMLB302 3.18 4.92 2.4~2.4835 5.15~5.85 PIFA i-pex(MHF) 200 included cable loss - Chain1 PSA RFMTA340718 EMLB302 3.18 4.92 2.4~2.4835 5.15~5.85 PIFA i-pex(MHF) 200 included cable loss - 3 Chain0 PSA RFMTA311020 EMMB301 1.71 4.82 3.31 2.4~2.4835 5.15~5.8…

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Report No.: RF200814E08-4 Page No. 1 / 41 Report Format Version: 6.1.1 Reference No.: Supplemental “Transmit Simultaneously” Test Report Report No.: RF200814E08-4 FCC ID: RAS-MT7921K Test Model: MT7921K Received Date: Aug. 14, 2020 Test Date: Sep. 16 to Oct. 15, 2020 Issued Date: Oct. 16, 2020 Applicant: MediaTek Inc. Address: No. 1, Dusing 1st Rd., Hsinchu Science Park Hsinchu City 30078 Taiwan Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwa. Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan. FCC Registration / Designation Number: 723255 / TW2022 This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. Report No.: RF200814E08-4 Page No. 2 / 41 Report Format Version: 6.1.1 Reference No.: Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity ...................................................................................................................... 4 2 Summary of Test Results ..................................................................................................................... 5 2.1 Measurement Uncertainty ................................................................................................................... 5 2.2 Modification Record ............................................................................................................................ 5 3 General Information .............................................................................................................................. 6 3.1 General Description of EUT ................................................................................................................ 6 3.1.1 Test Mode Applicability and Tested Channel Detail ............................................................................. 8 3.2 Description of Support Units .............................................................................................................. 11 3.2.1 Configuration of System under Test .................................................................................................. 12 4 Test Types and Results ...................................................................................................................... 13 4.1 Radiated Emission and Bandedge Measurement ............................................................................. 13 4.1.1 Limits of Radiated Emission and Bandedge Measurement .............................................................. 13 4.1.2 Test Instruments ................................................................................................................................ 15 4.1.3 Test Procedures ................................................................................................................................. 17 4.1.4 Deviation from Test Standard ............................................................................................................ 17 4.1.5 Test Setup .......................................................................................................................................... 18 4.1.6 EUT Operating Conditions ................................................................................................................. 19 4.1.7 Test Results (Mode 1)........................................................................................................................ 20 4.1.8 Test Results (Mode 2)........................................................................................................................ 23 4.1.9 Test Results (Mode 3)........................................................................................................................ 26 4.2 Conducted Emission Measurement .................................................................................................. 29 4.2.1 Limits of Conducted Emission Measurement .................................................................................... 29 4.2.2 Test Instruments ................................................................................................................................ 29 4.2.3 Test Procedures ................................................................................................................................. 31 4.2.4 Deviation from Test Standard ............................................................................................................ 31 4.2.5 Test Setup ...........................................................…

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Report No.: RF200814E08-3 Page No. 1 / 55 Report Format Version: 6.1.1 FCC Test Report (BT-LE) Report No.: RF200814E08-3 FCC ID: RAS-MT7921K Test Model: MT7921K Received Date: Aug. 14, 2020 Test Date: Sep. 12 to 25, 2020 Issued Date: Oct. 15, 2020 Applicant: MediaTek Inc. Address: No. 1, Dusing 1st Rd., Hsinchu Science Park Hsinchu City 30078 Taiwan Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Hsin Chu Laboratory Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300, Taiwan FCC Registration / Designation Number: 723255 / TW2022 This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. Report No.: RF200814E08-3 Page No. 2 / 55 Report Format Version: 6.1.1 Table of Contents Release Control Record .................................................................................................................................. 4 1 Certificate of Conformity ...................................................................................................................... 5 2 Summary of Test Results ..................................................................................................................... 6 2.1 Measurement Uncertainty ................................................................................................................... 6 2.2 Modification Record ............................................................................................................................ 6 3 General Information .............................................................................................................................. 7 3.1 General Description of EUT (BT-LE) ................................................................................................... 7 3.2 Description of Test Modes ................................................................................................................... 8 3.2.1 Test Mode Applicability and Tested Channel Detail ............................................................................. 9 3.3 Duty Cycle of Test Signal ................................................................................................................... 11 3.4 Description of Support Units ............................................................................................................. 12 3.4.1 Configuration of System under Test .................................................................................................. 13 3.5 General Description of Applied Standards and References ............................................................. 14 4 Test Types and Results ...................................................................................................................... 15 4.1 Radiated Emission and Bandedge Measurement ............................................................................. 15 4.1.1 Limits of Radiated Emission and Bandedge Measurement .............................................................. 15 4.1.2 Test Instruments ................................................................................................................................ 16 4.1.3 Test Procedures ................................................................................................................................. 18 4.1.4 Deviation from Test Standard ............................................................................................................ 18 4.1.5 Test Setup ..............................…

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