O57TB355FUPortable Tablet Computer

Lenovo (Shanghai) Electronics Technology Co., Ltd Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Date: April 9, 2026 Subject: Certifications concerning “covered” equipment pursuant to Part 2.911(d)(5)(i) and (ii) FCC ID: O57TB355FU To whom it may concern, Lenovo (Shanghai) Electronics Technology Co., Ltd 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 Person: Spring Zhou Lenovo (Shanghai) Electronics Technology Co., Ltd E-mail: [email protected]

------------------------------------------------- --------------------------------------- Lenovo (Shanghai) Electronics Technology Co., Ltd. Section 304-305, Building No. 4, # 222, Meiyue Road, China (Shanghai) Pilot Free Trade Zone Date: 1 / 23 / 2024 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, [ Lenovo (Shanghai) Electronics Technology Co., Ltd.] and FCC Grantee code：[ O57 ], FRN: 0021773460 (“the applicant”) certifies that, as of the date of the filing of application, [ Lenovo (United States) Incorporated ] (“the agent”) is designated as the U.S. agent for the purpose of accepting service of process on behalf of the applicant for Lenovo branded products. The physical U.S. address and email for the designated agent are: Physical U.S. address: [ 8001 Development Drive, Morrisville, NC 27560, United States ] FRN: 0012799359 Email: [ [email protected] ] The applicant accepts to 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 agent accepts the designation by (the applicant) as the U.S. agent to accept 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. Signed by the Applicant Signed by the Agent (if different from the Applicant) Name: Spring Zhou Name: Brian Killebrew Title: GIC Tablet & Mobile Gaming Business Product Certification Manager Address: Section 304-305, Building No. 4, # 222, Meiyue Road, China (Shanghai) Pilot Free Trade Zone Title: Director, Corporate Regulatory Compliance, Standards and ISO 9001 Address: 8001 Development Drive Morrisville, NC 27560 Email: [email protected] Email: [email protected]

1/1 Lenovo (Shanghai) Electronics Technology Co., Ltd Date: April 9, 2026 Federal Communications Commission Authorization and Evaluation Division RE : Certification Application FCC ID: O57TB355FU To Whom It May Concern, Pursuant to sections 0.457 and 0.459 of CFR 47, Public Notice DA 04-1705 of the Commission’s policy and to avoid premature release of sensitive information prior to marketing or release of the product to the public, the applicant requests the following documents contained in this certification application be temporarily withheld from public disclosure for an initial period of 180 days: ⚫ External Photos ⚫ Internal Photos ⚫ Test set-up photos ⚫ Users Manual The application contains technical information, which Lenovo (Shanghai) Electronics Technology Co., Ltd deems to be trade secrets and proprietary. If made public, the information might be used to the disadvantage of the applicant in the market place. 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, Contact Person: Spring Zhou E-mail: [email protected]

Rev. 1/1/03 Lenovo (Shanghai) Electronics Technology Co., Ltd Date: April 9, 2026 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: O57TB355FU Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Schematics Block Diagram Parts List Operation Description Tune up Procedure The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Spring Zhou

Lenovo (Shanghai) Electronics Technology Co., Ltd Date: April 9, 2026 Power of Attorney To whom it may concern, Please be notified that I, Spring Zhou, have designated Jim Tsai in Sporton International Inc. (Kunshan) as the person being responsible for this project and to sign the form 731 and other documentation. Any and all acts carried out in their professional capacity by Sporton International Inc. (Kunshan) on the matters of relating to all processes required in the FCC approval and any communication needed with the national authority, shall have the same legal authority as acts on our own behalf including the release of confidential information. We further certifies that neither the applicant nor any party to this application, as defined in 47 CFR Ch. 1.2002 (b), is subject to a denial to Federal benefits, that include FCC benefits, pursuant to section 5301 of the Anti-Drug Abuse Act of 1998, 21 U.S.C. 835(a). This authorization is limited to the product of as following: FCC ID: O57TB355FU If you have any acknowledgement and response, please send it to Sporton International Inc. (Kunshan) directly. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely yours, _____________________ Contact Person: Spring Zhou E-mail: [email protected]

Date: 2026-03-16 System Check_Head_2450MHz DUT: D2450V2 - SN1095 Communication System: CW; Frequency: 2450.000 MHz; Duty Cycle: 1:1 Medium: HSL_2450_260316 Medium parameters used: f= 2450.000 MHz; σ= 1.75 S/m; ε r =38.8 Ambient Temperature: 23.2°C; Liquid Temperature: 22.7°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(7.7, 7.41, 7.62); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: CW, 0-- Pin=50mW/Area Scan (40.0 mm x 80.0 mm): Measurement Grid: 10.0 mm x 10.0 mm SAR (1g) = 2.39 W/kg; SAR (10g) = 1.12 W/kg; Pin=50mW/Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = -0.04 dB SAR (1g) = 2.48 W/kg; SAR (10g) = 1.20 W/kg Smallest distance from peaks to all points 3 dB below = 9.0 mm Ratio of SAR at M2 to SAR at M1 = 79.3 % Appendix AReport No. : FA630205 Page: 1/4 Date: 2026-03-17 System Check_Head_5250MHz DUT: D5GHzV2 - SN1113 Communication System: CW; Frequency: 5250.000 MHz; Duty Cycle: 1:1 Medium: HSL_5250_260317 Medium parameters used: f= 5250.000 MHz; σ= 4.61 S/m; ε r =35.5 Ambient Temperature: 23.2°C; Liquid Temperature: 22.6°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(5.83, 5.62, 5.77); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: CW, 0-- Pin=50mW/Area Scan (40.0 mm x 80.0 mm): Measurement Grid: 10.0 mm x 10.0 mm SAR (1g) = 3.20 W/kg; SAR (10g) = 0.976 W/kg; Pin=50mW/Zoom Scan (22.0 mm x 22.0 mm x 22.0 mm): Measurement Grid: 4.0 mm x 4.0 mm x 1.4 mm Power Drift = 0.02 dB SAR (1g) = 3.76 W/kg; SAR (10g) = 1.11 W/kg Smallest distance from peaks to all points 3 dB below = 6.6 mm Ratio of SAR at M2 to SAR at M1 = 62.1 % Appendix AReport No. : FA630205 Page: 2/4 Date: 2026-03-18 System Check_Head_5600MHz DUT: D5GHzV2 - SN1113 Communication System: CW; Frequency: 5600.000 MHz; Duty Cycle: 1:1 Medium: HSL_5600_260318 Medium parameters used: f= 5600.000 MHz; σ= 4.99 S/m; ε r =35.1 Ambient Temperature: 23.3°C; Liquid Temperature: 22.7°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(5.33, 5.13, 5.27); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: CW, 0-- Pin=50mW/Area Scan (40.0 mm x 80.0 mm): Measurement Grid: 10.0 mm x 10.0 mm SAR (1g) = 3.50 W/kg; SAR (10g) = 1.06 W/kg; Pin=50mW/Zoom Scan (22.0 mm x 22.0 mm x 22.0 mm): Measurement Grid: 4.0 mm x 4.0 mm x 1.4 mm Power Drift = 0.04 dB SAR (1g) = 4.11 W/kg; SAR (10g) = 1.21 W/kg Smallest distance from peaks to all points 3 dB below = 7.2 mm Ratio of SAR at M2 to SAR at M1 = 58.8 % Appendix AReport No. : FA630205 Page: 3/4 Date: 2026-03-19 System Check_Head_5800MHz DUT: D5GHzV2 - SN1113 Communication System: CW; Frequency: 5800.000 MHz; Duty Cycle: 1:1 Medium: HSL_5800_260319 Medium parameters used: f= 5800.000 MHz; σ= 5.25 S/m; ε r =34.6 Ambient Temperature: 23.3°C; Liquid Temperature: 22.8°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(5.45, 5.25, 5.39); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: CW, 0-- Pin=50mW/Area Scan (40.0 mm x 80.0 mm): Measurement Grid: 10.0 mm x 10.0 mm SAR (1g) = 3.36 W/kg; SAR (10g) = 1.01 W/kg; Pin=50mW/Zoom Scan (22.0 mm x 22.0 mm x 22.0 mm): Measurement Grid: 4.0 mm x 4.0 mm x 1.4 mm Power Drift = -0.04 dB SAR (1g) = 3.91 W/kg; SAR (10g) = 1.15 W/kg Smallest distance from peaks to all points 3 dB below = 7.3 mm Ratio of SAR at M2 to SAR at M1 = 56.8 % Appendix AReport No. : FA630205 Page: 4/4

Date: 2026-03-16 01_WLAN2.4GHz_802.11b 1Mbps_Edge 1_0mm_Ch11 Communication System: IEEE 802.11b WiFi 2.4 GHz Frequency: 2462.000MHz; Duty Cycle: 1:1 Medium: HSL_2450_260316 Medium parameters used: f= 2462.000 MHz; σ= 1.77 S/m; ε r =38.9 Ambient Temperature: 23.2°C; Liquid Temperature: 22.7°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(7.7, 7.41, 7.62); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: WLAN, 10012-CAB Area Scan (42.0 mm x 320.0 mm): Measurement Grid: 7.0 mm x 10.0 mm SAR (1g) = 0.104 W/kg; SAR (10g) = 0.050 W/kg; Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = -0.17 dB SAR (1g) = 0.109 W/kg; SAR (10g) = 0.053 W/kg Smallest distance from peaks to all points 3 dB below = 8.0 mm Ratio of SAR at M2 to SAR at M1 = 79.2 % Appendix BReport No. : FA630205 Page: 1/5 Date: 2026-03-17 02_WLAN5GHz_802.11n-HT40 MCS0_Edge 1_0mm_Ch54 Communication System: IEEE 802.11ac WiFi Frequency:5270.000 MHz; Duty Cycle: 1:1 Medium: HSL_5250_260317 Medium parameters used: f= 5270.000 MHz; σ= 4.65 S/m; ε r =35.7 Ambient Temperature: 23.2°C; Liquid Temperature: 22.6°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(5.83, 5.62, 5.77); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: WLAN, 10544- Area Scan (42.0 mm x 320.0 mm): Measurement Grid: 7.0 mm x 10.0 mm SAR (1g) = 0.562 W/kg; SAR (10g) = 0.262 W/kg; Zoom Scan (22.0 mm x 22.0 mm x 22.0 mm): Measurement Grid: 4.0 mm x 4.0 mm x 1.4 mm Power Drift = -0.05 dB SAR (1g) = 0.674 W/kg; SAR (10g) = 0.303 W/kg Smallest distance from peaks to all points 3 dB below = 5.4 mm Ratio of SAR at M2 to SAR at M1 = 60.0 % Appendix BReport No. : FA630205 Page: 2/5 Date: 2026-03-18 03_WLAN5GHz_802.11ac-VHT80 MCS0_Edge 1_0mm_Ch122 Communication System: IEEE 802.11ac WiFi Frequency:5610.000 MHz; Duty Cycle: 1:1 Medium: HSL_5600_260318 Medium parameters used: f= 5610.000 MHz; σ= 5.03 S/m; ε r =34.9 Ambient Temperature: 23.3°C; Liquid Temperature: 22.7°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(5.33, 5.13, 5.27); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: WLAN, 10544- Area Scan (42.0 mm x 320.0 mm): Measurement Grid: 7.0 mm x 10.0 mm SAR (1g) = 0.587 W/kg; SAR (10g) = 0.278 W/kg; Zoom Scan (22.0 mm x 22.0 mm x 22.0 mm): Measurement Grid: 4.0 mm x 4.0 mm x 1.4 mm Power Drift = 0.05 dB SAR (1g) = 0.704 W/kg; SAR (10g) = 0.329 W/kg Smallest distance from peaks to all points 3 dB below = 5.6 mm Ratio of SAR at M2 to SAR at M1 = 58.1 % Appendix BReport No. : FA630205 Page: 3/5 Date: 2026-03-19 04_WLAN5GHz_802.11ac-VHT80 MCS0_Edge 1_0mm_Ch155 Communication System: IEEE 802.11ac WiFi Frequency:5775.000 MHz; Duty Cycle: 1:1 Medium: HSL_5800_260319 Medium parameters used: f= 5775.000 MHz; σ= 5.20 S/m; ε r =34.6 Ambient Temperature: 23.3°C; Liquid Temperature: 22.8°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(5.45, 5.25, 5.39); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: WLAN, 10544- Area Scan (42.0 mm x 320.0 mm): Measurement Grid: 7.0 mm x 10.0 mm SAR (1g) = 0.703 W/kg; SAR (10g) = 0.268 W/kg; Zoom Scan (22.0 mm x 22.0 mm x 22.0 mm): Measurement Grid: 4.0 mm x 4.0 mm x 1.4 mm Power Drift = 0.04 dB SAR (1g) = 0.708 W/kg; SAR (10g) = 0.304 W/kg Smallest distance from peaks to all points 3 dB below = 6.1 mm Ratio of SAR at M2 to SAR at M1 = 56.0 % Appendix BReport No. : FA630205 Page: 4/5 Date: 2026-03-16 05_Bluetooth_1Mbps_Edge 1_0mm_Ch39 Communication System: IEEE 802.15.1 Bluetooth Frequency: 2441.000 MHz;Duty Cycle: 1:1.305 Medium: HSL_2450_260316 Medium parameters used: f= 2441.000 MHz; σ= 1.75 S/m; ε r =39.1 Ambient Temperature: 23.2°C; Liquid Temperature: 22.7°C DASY6 Configuration: - Probe: EX3DV4 - SN7627; ConvF(7.7, 7.41, 7.62); Calibrated: 2026-02-25 - Sensor-Surface: 1.4 mm - Electronics: DAE4 Sn1358; Calibrated: 2025-07-15 - Phantom: ELI V8.0 (20deg probe tilt); Serial: 2135; Section: Flat - Measurement Software: 16.4.0.5005 - UID: Bluetooth, 10032- Area Scan (42.0 mm x 320.0 mm): Measurement Grid: 7.0 mm x 10.0 mm SAR (1g) = 0.057 W/kg; SAR (10g) = 0.029 W/kg; Zoom Scan (30.0 mm x 30.0 mm x 30.0 mm): Measurement Grid: 5.0 mm x 5.0 mm x 1.5 mm Power Drift = -0.02 dB SAR (1g) = 0.059 W/kg; SAR (10g) = 0.030 W/kg Smallest distance from peaks to all points 3 dB below = 7.0 mm Ratio of SAR at M2 to SAR at M1 = 82.5 % Appendix BReport No. : FA630205 Page: 5/5

Appendix C Report No. : FA630205 Page: 1/44 Appendix C Report No. : FA630205 Page: 2/44 Appendix C Report No. : FA630205 Page: 3/44 Appendix C Report No. : FA630205 Page: 4/44 Appendix C Report No. : FA630205 Page: 5/44 Appendix C Report No. : FA630205 Page: 6/44 Appendix C Report No. : FA630205 Page: 7/44 D2450V2, Serial No. 1095 Extended Dipole Calibrations If dipoles are verified in return loss (<-20dB, within 20% of prior calibration), and in impedance (within 5 ohm of prior calibration), the annual calibration is not necessary and the calibration interval can be extended. D2450V2 – serial no. 1095 2450 Head Date of Measurement Return-Loss (dB) Delta (%) Real Impedance (ohm) Delta (ohm) Imaginary Impedance (ohm) Delta (ohm) 2024.2.8 -24.264 51.343 6.0670 2025.2.7 -24.840 2% 52.727 1.384 6.5740 0.507 2026.2.6 -23.389 -4% 51.314 -0.029 6.0825 0.015 <Justification of the extended calibration> The return loss is < -20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data> D2450V2, serial no. 1095 2450MHz – Head-2025.2.7 Appendix CReport No. : FA630205 Page: 8/44 Dipole Verification Data> D2450V2, serial no. 1095 2450MHz – Head-2026.2.6 Appendix CReport No. : FA630205 Page: 9/44 Appendix C Report No. : FA630205 Page: 10/44 Appendix C Report No. : FA630205 Page: 11/44 Appendix C Report No. : FA630205 Page: 12/44 Appendix C Report No. : FA630205 Page: 13/44 Appendix C Report No. : FA630205 Page: 14/44 Appendix C Report No. : FA630205 Page: 15/44 Appendix C Report No. : FA630205 Page: 16/44 Appendix C Report No. : FA630205 Page: 17/44 Appendix C Report No. : FA630205 Page: 18/44 Appendix C Report No. : FA630205 Page: 19/44 Appendix C Report No. : FA630205 Page: 20/44 Appendix C Report No. : FA630205 Page: 21/44 Appendix C Report No. : FA630205 Page: 22/44 Appendix C Report No. : FA630205 Page: 23/44 Appendix C Report No. : FA630205 Page: 24/44 Appendix C Report No. : FA630205 Page: 25/44 Appendix C Report No. : FA630205 Page: 26/44 Appendix C Report No. : FA630205 Page: 27/44 Appendix C Report No. : FA630205 Page: 28/44 Appendix C Report No. : FA630205 Page: 29/44 Appendix C Report No. : FA630205 Page: 30/44 Appendix C Report No. : FA630205 Page: 31/44 Appendix C Report No. : FA630205 Page: 32/44 Appendix C Report No. : FA630205 Page: 33/44 Appendix C Report No. : FA630205 Page: 34/44 Appendix C Report No. : FA630205 Page: 35/44

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ModeChannel Frequency (MHz) Average Power (dBm) Tune-Up Limit Duty Cycle % ModeChannel Frequency (MHz) Average Power (dBm) Tune-Up Limit Duty Cycle % ModeChannel Frequency (MHz) Average Power (dBm) Tune-Up Limit Duty Cycle % 1241215.1217.00100.0036518016.6118.50100.0052526016.7318.50100.00 22417--100.0040520016.6618.50100.0056528016.7218.50100.00 6243715.4117.00100.0044522016.7818.50100.0060530016.5918.50100.00 82447--100.0048524016.7318.50100.0064532016.5718.50100.00 92452--100.0036518016.7018.50100.0052526016.9918.50100.00 102457--100.0040520016.8218.50100.0056528016.9718.50100.00 11246215.5217.00100.0044522016.9718.50100.0060530016.8418.50100.00 1241214.6116.50100.0048524016.8818.50100.0064532016.7518.50100.00 2241716.1818.00100.0038519014.7816.50100.0054527016.7718.50100.00 6243718.3520.00100.0046523016.7118.50100.0062531014.7216.50100.00 82447--100.0036518016.7418.50100.0052526017.0218.50100.00 92452--100.0040520016.8618.50100.0056528016.9918.50100.00 10245716.3418.00100.0044522017.0218.50100.0060530016.8518.50100.00 11246213.8615.50100.0048524016.9418.50100.0064532016.7718.50100.00 1241212.4514.00100.0038519014.8116.50100.0054527016.8018.50100.00 2241716.5918.50100.0046523016.7818.50100.0062531014.7416.50100.00 6243718.4820.00100.00802.11ac-VHT80 MCS042521013.2215.00100.00802.11ac-VHT80 MCS058529012.4914.00100.00 8244718.4719.00100.0036518016.7918.50100.0052526017.0618.50100.00 9245215.3917.00100.0040520016.9218.50100.0056528017.0418.50100.00 10245713.4915.00100.0044522017.0618.50100.0060530016.8618.50100.00 11246212.4214.00100.0048524016.9818.50100.0064532016.7918.50100.00 3242212.2414.00100.0038519014.8316.50100.0054527016.8218.50100.00 6243714.7816.50100.0046523016.8118.50100.0062531014.7716.50100.00 9245211.6913.50100.00802.11ax-HE80 MCS042521013.2415.00100.00802.11ax-HE80 MCS058529012.5114.00100.00 1241212.7814.50100.00 2241716.6818.50100.00 6243718.5420.50100.00 8244718.6819.00100.00 9245215.6417.50100.00 10245713.7815.50100.00 11246212.8714.50100.00 3242212.6814.50100.00 6243714.9516.50100.00 9245212.0514.00100.00 802.11n-HT20 MCS0 802.11n-HT40 MCS0 802.11ax-HE20 MCS0 802.11ax-HE40 MCS0 802.11n-HT40 MCS0 802.11ac-VHT20 MCS0 802.11ac-VHT40 MCS0 802.11ax-HE20 MCS0 802.11ax-HE40 MCS0 <2.4GHz WLAN_Ant 1_Full Power> 2.4GHz WLAN_Ant 1_Full PowerAnt 1 802.11b 1Mbps <5.3GHz WLAN_Ant 1_Full Power> 5.3GHz WLAN_Ant 1_Full PowerAnt 1 802.11a 6Mbps 802.11n-HT20 MCS0 <5.2GHz WLAN_Ant 1_Full Power> 5.2GHz WLAN_Ant 1_Full PowerAnt 1 802.11a 6Mbps 802.11n-HT20 MCS0 802.11g 6Mbps 802.11n-HT40 MCS0 802.11ac-VHT20 MCS0 802.11ac-VHT40 MCS0 802.11ax-HE20 MCS0 802.11ax-HE40 MCS0 Appendix EReport No. : FA630205 Page:1/3 ModeChannel Frequency (MHz) Average Power (dBm) Tune-Up Limit Duty Cycle % ModeChannel Frequency (MHz) Average Power (dBm) Tune-Up Limit Duty Cycle % 100550015.0416.50100.00149574515.3717.00100.00 116558015.1316.50100.00157578515.4517.00100.00 124562015.0916.50100.00165582515.5317.00100.00 132566014.9216.50100.00149574515.6217.00100.00 140570014.7916.50100.00157578515.6817.00100.00 144572014.9816.50100.00165582515.5917.00100.00 100550015.2416.50100.00151575515.4717.00100.00 116558015.2916.50100.00159579515.4517.00100.00 124562015.2016.50100.00149574515.6517.00100.00 132566015.0416.50100.00157578515.7517.00100.00 140570014.9416.50100.00165582515.6517.00100.00 144572015.0616.50100.00151575515.5117.00100.00 102551015.1216.50100.00159579515.5117.00100.00 110555015.0716.50100.00802.11ac-VHT80 MCS0155577515.4317.00100.00 126563014.9616.50100.00149574515.6817.00100.00 134567014.8616.50100.00157578515.7817.00100.00 142571014.8916.50100.00165582515.7017.00100.00 100550015.2816.50100.00151575515.5817.00100.00 116558015.3516.50100.00159579515.5517.00100.00 124562015.2516.50100.00802.11ax-HE80 MCS0155577515.4717.00100.00 132566015.0916.50100.00 140570014.9716.50100.00 144572015.1316.50100.00 102551015.1916.50100.00 110555015.1216.50100.00 126563015.0216.50100.00 134567014.8916.50100.00 142571014.9216.50100.00 106553014.0816.00100.00 122561014.8816.50100.00 138569014.8516.50100.00 100550015.3116.50100.00 116558015.3816.50100.00 124562015.2916.50100.00 132566015.1416.50100.00 140570015.0316.50100.00 144572015.1616.50100.00 102551015.2216.50100.00 110555015.1916.50100.00 126563015.0716.50100.00 134567014.9616.50100.00 142571014.9516.50100.00 106553014.1216.00100.00 122561014.9316.50100.00 138569014.8816.50100.00 802.11ac-VHT80 MCS0 802.11a 6Mbps 802.11n-HT20 MCS0 802.11n-HT40 MCS0 802.11ac-VHT20 MCS0 802.11ac-VHT40 MCS0 802.11ax-HE20 MCS0 802.11ax-HE40 MCS0 802.11ax-HE80 MCS0 <5.8GHz WLAN_Ant 1_Full Power> 5.8GHz WLAN_Ant 1_Full PowerAnt 1 802.11a 6Mbps 802.11n-HT20 MCS0 802.11n-HT40 MCS0 802.11ac-VHT20 MCS0 802.11ac-VHT40 MCS0 802.11ax-HE20 MCS0 802.11ax-HE40 MCS0 <5.5GHz WLAN_Ant 1_Full Power> 5.5GHz WLAN_Ant 1_Full PowerAnt 1 Appendix EReport No. : FA630205 Page:2/3 ModeChannel Frequency (MHz) Average Power (dBm) Tune-Up Limit Duty Cycle % 0240212.0214.0076.63 39244112.8214.5076.63 78248012.7914.5076.63 024028.8010.5076.63 3924418.8410.5076.63 7824808.9610.5076.63 024028.8210.5076.63 3924418.8910.5076.63 7824808.9810.5076.63 024026.448.0082.26 1924406.848.5082.26 3924806.928.5082.26 024026.438.0056.25 1924406.858.5056.25 3924806.938.5056.25 024026.468.0061.11 1924406.888.5061.11 3924806.958.5061.11 024026.878.0031.02 1924406.938.5031.02 3924806.968.5031.02 <Bluetooth_Ant 1_Full Power> Bluetooth_Ant 1_Full PowerAnt 1 BR / EDR 1Mbps BR / EDR 2Mbps BR / EDR 3Mbps LE 125kbps LE 500kbps LE 1Mbps LE 2Mbps Appendix EReport No. : FA630205 Page:3/3

Sporton International Inc. (Kunshan) Page : 1 of 27 TEL : +86-512-57900158 Issued Date : Apr. 10, 2026 FCC ID : O57TB355FU Report Template No. : 200414 FCC SAR Test Report Report No. : FA630205 FCC SAR Test Report APPLICANT : Lenovo(Shanghai) Electronics Technology Co., Ltd. EQUIPMENT : Portable Tablet Computer BRAND NAME : Lenovo MODEL NAME : TB355FU FCC ID : O57TB355FU STANDARD : FCC 47 CFR Part 2 (2.1093) We, Sporton International Inc. (Kunshan), would like to declare that the tested sample has been evaluated in accordance with the test procedures given in 47 CFR Part 2.1093 and FCC KDB and has been in compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Si Zhang Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc. (Kunshan) Page : 2 of 27 TEL : +86-512-57900158 Issued Date : Apr. 10, 2026 FCC ID : O57TB355FU Report Template No. : 200414 FCC SAR Test Report Report No. : FA630205 Table of Contents 1. Statement of Compliance ............................................................................................................................................. 4 2. Administration Data ...................................................................................................................................................... 5 3. Guidance Applied .......................................................................................................................................................... 5 4. Equipment Under Test (EUT) Information ................................................................................................................... 6 4.1 General Information ............................................................................................................................................... 6 5. RF Exposure Limits....................................................................................................................................................... 7 5.1 Uncontrolled Environment ...................................................................................................................................... 7 5.2 Controlled Environment .......................................................................................................................................... 7 6. Specific Absorption Rate (SAR) ................................................................................................................................... 8 6.1 Introduction ............................................................................................................................................................ 8 6.2 SAR Definition ........................................................................................................................................................ 8 7. System Description and Setup .................................................................................................................................... 9 7.1 E-Field Probe ........................................................................................................................................................10 7.2 Data Acquisition Electronics (DAE) .......................................................................................................................10 7.3 Phantom ................................................................................................................................................................ 11 7.4 Device Holder........................................................................................................................................................12 8. Measurement Procedures ...........................................................................................................................................13 8.1 Spatial Peak SAR Evaluation ................................................................................................................................13 8.2 Power Reference Measurement............................................................................................................................14 8.3 Area Scan .............................................................................................................................................................14 8.4 Zoom Scan ............................................................................................................................................................15 8.5 Volume Scan Procedures .......................................................................................................................…

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