2AGOZ-C4BDebug Tool

Meta Platforms Technologies, LLC 1 Meta Way, Menlo park, CA United States 94025 Tel: 408-666-7053 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Certification designating a U.S. agent for service of process pursuant to Part 2.911(d)(7) To whom it may concern, [Meta Platforms Technologies, LLC Grantee Code 2AGOZ] (“the applicant”) as required by section 2.911(d)(7), will also serve as the agent for service of process for the above referenced FCC Grantee Code. The service of process includes, but is not limited to, delivery of any correspondence, notices, orders, decisions, and requirements of administrative, legal, or judicial process related to Commission proceedings. The applicant acknowledges that they will maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges their responsibility to inform the FCC whenever the following agent information changes. Company Name: Meta Platforms Technologies, LLC Company US Address: 1 Hacker Way, Menlo park, CA United States 94025 Contact Person: Oliver Lin Email: [email protected] Telephone number: 408-666-7053 FRN: 0024115743 Sincerely yours, Signed by the Applicant Name: Oliver Lin Title:Manager,Devices Certifications & Compliance Email: [email protected] Date: March 3, 2026

Meta Platforms Technologies, LLC 1 Meta Way, Menlo park, CA United States 94025 Tel: 408-666-7053 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Date: March 16, 2026 Subject: Certifications concerning “covered” equipment pursuant to Part 2.911(d)(5)(i) and (ii) FCC ID: 2AGOZ-C4B To whom it may concern, Meta Platforms Technologies, LLC (“the applicant”) certifies that the equipment for which authorization is sought is not the equipment on the Covered List, as established pursuant to § 1.50002 of CFR Title 47, that is prohibited from obtaining an equipment authorization under this subpart. This includes equipment that: (1) Has been certified as a modular transmitter; or (2) Meets the modular transmitter requirements of § 15.212 of this chapter and could be certified as a modular transmitter. pursuant to section 2.903 resulting the recent adoption of FCC 25-71 (et al., ET Docket No. 21-232, Second Report and Order); or (3) Uncrewed aircraft systems (UAS) and UAS critical components produced in a foreign country and all communications and video surveillance equipment and services listed in Section 1709(a)(1) of the FY25 National Defense Authorization Act (Pub. L. 118-159) Applicant certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Applicant further certifies that no Cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software is installed in the equipment being certified. The above-referenced Covered List is published by the Public Safety and Homeland Security Bureau (PSHSB), pursuant to Section 1.50002 of the Commission’s rules. Sincerely, ________________________ Contact Name: Oliver Lin Title: Manager, Devices Certifications & Compliance E-mail: [email protected]

Meta Platforms Technologies, LLC 1 Meta Way, Menlo park, CA United States 94025 Tel: 408-666-7053 Date: March 16, 2026 FCC Laboratory 7435 Oakland Mills Rd Columbia MD 21046 Subject: Request for Confidentiality FCC ID: 2AGOZ-C4B To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission’s rules (47CFR§§0.457, 0.459), we are requesting the Commission to withhold the following documents from public disclosure indefinitely. ● Schematic Diagram ● Block Diagram ● Part List ● Operational Description ● Tune-up Procedure Above mentioned documents which contain detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor 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 newly authorized devices, we are requesting the Commission to withhold the following documents for 180 days after the grant of equipment authorization is issued: ● External Photos ● Internal Photos ● Test Setup Photos ● User Manual It is our understanding that all measurement test reports, FCC ID label format cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards, _______________________ Contact Name: Oliver Lin Title: Manager, Devices Certifications & Compliance E-mail: [email protected]

Meta Platforms Technologies, LLC 1 Meta Way, Menlo park, CA United States 94025 Tel: 408-666-7053 Date: March 16, 2026 FCC Agent Authorization Meta Platforms Technologies, LLC hereby authorize Sporton International Inc. to act on our behalf in all matters relating to applications for FCC equipment authorization, including the signing of all documents relating to these matters. Any and all acts carried out by Sporton International Inc. on our behalf shall have the same effect as acts of our own. We also hereby certify that neither the applicant nor any party to the application is subject to a denial of Federal benefits that includes FCC benefits pursuant to section 5301 of the Anti-Drug Abuse Act of 1988. 21 U.S.C. 862. This authorization is limited to the product of as following: FCC ID: 2AGOZ-C4B This authorization is valid until further written notice from Meta Platforms Technologies, LLC. Sincerely, ________________________ Contact Name: Oliver Lin Title: Manager, Devices Certifications & Compliance E-mail: [email protected]

Sporton International Inc. (Shenzhen) Page Number : 1 of 7 TEL : +86-755-86379589 / FAX : +86-755-86379595 Report Issued Date : Mar. 27, 2026 FCC ID : 2AGOZ-C4B Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA622711 RF Exposure Evaluation Report APPLICANT : Meta Platforms Technologies, LLC EQUIPMENT : Debug Tool MODEL NAME : C4B FCC ID : 2AGOZ-C4B STANDARD : 47 CFR Part 2.1091 FCC KDB 447498 D01 v06 The product evaluation date was started from Mar. 25, 2026 and completed on Mar. 25, 2026. We, Sporton International Inc. (Shenzhen), would like to declare that the device has been evaluated in accordance with 47 CFR Part 2.1091 and FCC KDB 447498 D01 v06, and pass the limit. Without written approval of Sporton International Inc. (Shenzhen), the test report shall not be reproduced except in full. Approved by: Hank Huang Sporton International Inc. (Shenzhen) 1/F, 2/F, Bldg 5, Shiling Industrial Zone, Xinwei Village, Xili, Nanshan, Shenzhen, 518055 People’s Republic of China Sporton International Inc. (Shenzhen) Page Number : 2 of 7 TEL : +86-755-86379589 / FAX : +86-755-86379595 Report Issued Date : Mar. 27, 2026 FCC ID : 2AGOZ-C4B Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA622711 Table of Contents 1. ADMINISTRATION DATA ........................................................................................................................... 4 1.1. Testing Laboratory ............................................................................................................................. 4 2. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 5 3. MAXIMUM RF OUTPUT TUNE UP POWER (UNIT: DBM) ........................................................................ 5 4. RF EXPOSURE LIMIT INTRODUCTION .................................................................................................... 6 5. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ............................................................... 7 5.1. Standalone Power Density Calculation ............................................................................................. 7 Sporton International Inc. (Shenzhen) Page Number : 3 of 7 TEL : +86-755-86379589 / FAX : +86-755-86379595 Report Issued Date : Mar. 27, 2026 FCC ID : 2AGOZ-C4B Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA622711 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA622711 Rev. 01 Initial issue of report. Mar. 27, 2026 Sporton International Inc. (Shenzhen) Page Number : 4 of 7 TEL : +86-755-86379589 / FAX : +86-755-86379595 Report Issued Date : Mar. 27, 2026 FCC ID : 2AGOZ-C4B Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA622711 1. Administration Data 1.1. Testing Laboratory Sporton International Inc. (Shenzhen) is accredited to ISO/IEC 17025:2017 by American Association for Laboratory Accreditation with Certificate Number 5145.01. Testing Laboratory Test Firm Sporton International Inc. (Shenzhen) Test Site Location 1/F, 2/F, Bldg 5, Shiling Industrial Zone, Xinwei Village, Xili, Nanshan, Shenzhen, 518055 People’s Republic of China TEL: +86-755-86379589 FAX: +86-755-86379595 Test Site No. Sporton Site No. FCC Designation No. FCC Test Firm Registration No. SAR01-SZ CN1256 421272 Applicant Company Name Meta Platforms Technologies, LLC Address 1 Meta Way, Menlo Park, CA 94025, USA Manufacturer Company Name Meta Platforms Technologies, LLC Address 1 Meta Way, Menlo Park, CA 94025, USA Sporton International Inc. (Shenzhen) Page Number : 5 of 7 TEL : +86-755-86379589 / FAX : +86-755-86379595 Report Issued Date : Mar. 27, 2026 FCC ID : 2AGOZ-C4B Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA622711 2. Description of Equipment Under Test (EUT) Product Feature & Specification EUT Type Debug Tool Model Name C4B FCC ID 2AGOZ-C4B Wireless Technology and Frequency Range 60.5GHz Mode 60.5GHz: 2ASK Antenna Gain 60.5GHz: 4.0 dBi Antenna Type 60.5GHz: Aperture coupled patch signal Antenna Remark: The above EUT's information was declared by manufacturer. Please refer to the specifications or user's manual for more detailed description. Comments and Explanations: 1. The declared of product specification for EUT presented in the report are provided by the manufacturer, and the manufacturer takes all the responsibilities for the accuracy of product specification. 2. The maximum RF output tune up power, antenna gain also the safe distance used for evaluate RF exposure were declared by manufacturer. 3. Maximum RF Output Tune Up Power (Unit: dBm) <60.5GHz> Mode Maximum EIRP power(dBm) 60.5GHz 3.00 Sporton International Inc. (Shenzhen) Page Number : 6 of 7 TEL : +86-755-86379589 / FAX : +86-755-86379595 Report Issued Date : Mar. 27, 2026 FCC ID : 2AGOZ-C4B Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA622711 4. RF Exposure Limit Introduction According to ANSI/IEEE C95.1-1992, the criteria listed in Table 1 shall be used to evaluate the environmental impact of human exposure to radio frequency (RF) radiation as specified in §1.1310. The MPE was calculated at 20 cm to show compliance with the power density limit. The following formula was used to calculate the Power Density: 퐒= 퐏퐆 ퟒ훑퐑 ퟐ Where: S = Power Density P = Output Power at Antenna Terminals G = Gain of Transmit Antenna (linear gain) R = Distance from Transmitting Antenna Sporton International Inc. (Shenzhen) Page Number : 7 of 7 TEL : +86-755-86379589 / FAX : +86-755-86379595 Report Issued Date : Mar. 27, 2026 FCC ID : 2AGOZ-C4B Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA622711 5. Radio Frequency Radiation Exposure Evaluation 5.1. Standalone Power Density Calculation Band Frequency (MHz) Maximum EIRP (dBm) Average EIRP (mW) Power Density at 20cm (mW/cm^2) Limit (mW/cm^2) 60.5GHz 60500.0 3.00 1.995 0.0004 1 Conclusion: According to 47 CFR §2.1091, the RF exposure analysis …

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Antenna report

TEST REPORT APPLICANT Meta Platforms Technologies, LLC MODEL NAME C4B FCC ID 2AGOZ-C4B ISED ID 20849-C4B REPORT NUMBER HA2602-0024-R02 Report No.: HA2602-0024-R02 1 / 41 This document may not be copied or reproduced (reprinted) without written consent by HCT America, Inc. 840 Yosemite Way, Milpitas, CA 95035, USA TEL: +1-510-933-8848 TEST REPORT Date of Issue March 06, 2026 Te s t S i t e HCT America, Inc. 840 Yosemite Way, Milpitas, CA 95035, USA Applicant Meta Platforms Technologies, LLC Applicant Address 1 Hacker Wy Menlo Park, CA 94025 United States FCC ID 2AGOZ-C4B ISED ID 20849-C4B Model Name C4B EUT Type Debug Tool Modulation Type Amplitude-Shift Keying (ASK) FCC Classification Low Power Communication Device Transmitter (DXX) FCC Rule Part(s) Part 15 Subpart C (15.255) ISED Rule Part(s) RSS-210, Issue 11, Annex J Test Procedure ANSI C63.10-2020 The device bearing the trade name and model specified above, has been shown to comply with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures required. The results of testing in this report apply only to the product which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. 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. HCT America, Inc. certifies that no party to application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C 862 Tested By Reviewed By Kevin Kim Dan Coronia Test Engineer Technical Manager Report No.: HA2602-0024-R02 2 / 41 This document may not be copied or reproduced (reprinted) without written consent by HCT America, Inc. 840 Yosemite Way, Milpitas, CA 95035, USA TEL: +1-510-933-8848 REVISION HISTORY The revision history for this document is shown in table. TEST REPORT NO. REVISION DATE DESCRIPTION HA2602-0024-R02 0 March 06, 2025 Initial Issue Report No.: HA2602-0024-R02 3 / 41 This document may not be copied or reproduced (reprinted) without written consent by HCT America, Inc. 840 Yosemite Way, Milpitas, CA 95035, USA TEL: +1-510-933-8848 TABLE OF CONTENTS 1. GENERAL INFORMATION .................................................................................................................................. 4 1.1. GENERAL INFORMATION ........................................................................................................................ 4 1.2. RF SPECIFICATION SUBJECT TO THE REPORT ............................................................................................ 4 1.3. EUT Operation During Test ...................................................................................................................... 5 2. METHODOLOGY ............................................................................................................................................... 6 3. INSTRUMENT CALIBRATION .............................................................................................................................. 6 4. FACILITIES AND ACCREDITATIONS ...................................................................................................................... 7 5. ANTENNA REQUIREMENTS ............................................................................................................................... 8 6. MEASUREMENT UNCERTAINTY ......................................................................................................................... 9 7. DESCRIPTION OF TESTS ................................................................................................................................... 10 7.1. 6 dB Emission Bandwidth ..................................................................................................................... 10 7.2. 99% Emission Bandwidth ....................................................................................................................... 11 7.3. RF Output Power .................................................................................................................................. 12 7.3.1 Radiated Power .......................................................................................................................... 12 7.3.2 Conducted Output Power ............................................................................................................ 12 7.4 Unwanted Emissions ............................................................................................................................. 14 7.5 Frequency Stability................................................................................................................................ 17 7.6 AC Power Line Conducted Emissions ...................................................................................................... 18 8. SUMMARY OF TEST RES ULTS ........................................................................................................................... 19 9. Measurement Distance................................................................................................................................... 20 9.1 In-Band Measurement Distance ..................................................................................................... 20 9.2 Out-of -Band Measurement Distance ............................................................................................... 20 10. Test Configuration ........................................................................................................................................ 21 11. TEST RESULT ...............................................................…

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