2BGKB-Q0MAXWireless Mechanical Keyboard

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement in portable exposure condition without restriction.

Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen 2.911 (d)(5)(i) Equipment Type Attestation v1.2 K Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Keychron Technology (Shenzhen) Co., Ltd. Address: 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen Product Name: Wireless Mechanical Keyboard FCC ID: 2BGKB-Q0MAX Model(s): Q0 Max 2.911(d)(5)(i) Equipment Type We, Keychron Technology (Shenzhen) Co., Ltd. (“the applicant”) certify that the equipment for which authorization is sought through certification is not: • Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules. • Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Date: 2024/6/5 Name: Nick Xu Title: CEO Company: Keychron Technology (Shenzhen) Co., Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Keychron Technology (Shenzhen) Co., Ltd. Address: 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen Product Name: Wireless Mechanical Keyboard FCC ID: 2BGKB-Q0MAX Model(s): Q0 Max 2.911(d)(5)(ii) Applicant filing We, Keychron Technology (Shenzhen) Co., Ltd. (“the applicant”) certify that, as of the date of the filing of the application, the applicant is is not identified on the “Covered List” NOTE 1 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Signature: Date: 2024/6/5 Name: Nick Xu Title: CEO Company: Keychron Technology (Shenzhen) Co., Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the- communications-supply-chain-through-the

Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 23/5/2024 U.S. Agent Designation Keychron Technology (Shenzhen) Co., Ltd.acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BGKB-Q0MAX): Name and company of U.S. agent: Keychron, Inc. Physical U.S. address of agent: 8 The Green ste a, Dover, DE 19901, United States FRN of U.S. agent: 0033472820 Email address of U.S. agent: [email protected] Keychron, Inc. acknowledges their obligation to accept service of process on behalf of Keychron Technology (Shenzhen) Co., Ltd. Keychron Technology (Shenzhen) Co., Ltd. with the FRN [0035456235] accepts its obligation 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Nick Xu CEO Keychron Technology (Shenzhen) Co., Ltd. Signature Nick Xu CEO Keychron. 48_[model] US_Agent_2.911(d)(7) - U, V05

Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024/6/5 Subject; Request for Confidentiality FCC ID: 2BGKB-Q0MAX To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Nick Xu Title: CEO

Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen Letter of Authorization Company name: Keychron Technology (Shenzhen) Co., Ltd. Address: 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen Product Name: Wireless Mechanical Keyboard FCC ID: 2BGKB-Q0MAX Model(s): Q0 Max Product Description: Wireless Mechanical Keyboard We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2024/6/5 Name: Nick Xu Title: CEO Company: Keychron Technology (Shenzhen) Co., Ltd.

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 4 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 4 Fig.5 Fig.6 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 4 Fig.7

Label Location FCC ID: 2BGKB-Q0MAX

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 4 Fig.3 Fig.4 Bluetooth antenna Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 4 Fig.5 Fig.6 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 4 Fig.7

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 The example values shown in Table B.2 are for illustration only. Frequency (MHz) Distance (mm) 5 10 15 20 25 30 35 40 45 50 300 39 65 88 110 129 148 166 184 201 217 450 22 44 67 89 112 135 158 180 203 226 835 9 25 44 66 90 116 145 175 207 240 1900 3 12 26 44 66 92 122 157 195 236 2450 3 10 22 38 59 83 111 143 179 219 3600 2 8 18 32 49 71 96 125 158 195 5800 1 6 14 25 40 58 80 106 136 169 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Conducted Power Results TestMode Antenna Frequency[MHz] Conducted Peak Powert[dBm] BLE_1M Ant1 2402 1.01 BLE_1M Ant1 2440 0.65 BLE_1M Ant1 2480 -0.11 TestMode Antenna Frequency[MHz] Conducted Peak Powert[dBm] SRD Ant1 2402 1.00 SRD Ant1 2440 0.83 SRD Ant1 2480 0.02 Manufacturing tolerance GFSK(BLE) (Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) 0.5 0 -0.5 Tolerance ±(dB) 1 1 1 GFSK(SRD) (Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) 0.5 0.5 -0.5 Tolerance ±(dB) 1 1 1 Results Test Mode Max Conduated Tune Up Power(dBm) Max of ERP and Conducted Power including Tune Up (dBm) Max of ERP and Conducted Power including Tune Up (mW) Exemption Limit(mW) GFSK(BLE) 1.5 1.50 1.41 3 GFSK(SRD) 1.5 1.50 1.41 3 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The antenna gain of the EUT for BT is -0.04dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

2.4G Freq Efficiency_dB Gain Efficiency_Pcent 2300 -7.31 0.38 18.57 2310 -7.24 0.39 18.89 2320 -7.18 0.36 19.15 2330 -7.16 0.31 19.25 2340 -7.19 0.2 19.09 2350 -7.28 0.05 18.69 2360 -7.33 -0.01 18.49 2370 -7.43 -0.13 18.08 2380 -7.46 -0.19 17.93 2390 -7.46 -0.23 17.95 2400 -7.41 -0.2 18.17 2410 -7.33 -0.14 18.5 2420 -7.25 -0.1 18.83 2430 -7.23 -0.1 18.93 2440 -7.14 -0.06 19.31 2450 -7.09 -0.04 19.55 2460 -7.07 -0.13 19.63 2470 -7.11 -0.26 19.44 2480 -7.21 -0.45 19.01 2490 -7.33 -0.6 18.49 2500 -7.46 -0.75 17.94 2510 -7.63 -0.83 17.27 2520 -7.75 -0.8 16.78 2530 -7.91 -0.75 16.19 2540 -8.03 -0.66 15.75 2550 -8.12 -0.55 15.41 2560 -8.23 -0.5 15.04 2570 -8.38 -0.51 14.52 2580 -8.6 -0.61 13.79 2590 -8.69 -0.67 13.52 2600 -8.75 -0.79 13.34 2450MHZ

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 1 of 19 Appendix Test Data for BLE (Conducted Measurement) Product Name: Wireless Mechanical Keyboard Trade Mark: Keychron Test Model: Q0 Max FCC ID: 2BGKB-Q0MAX Environmental Conditions Temperature: 23.8°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Hugo Chen NOTE N/A Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 0.652 2401.692 2402.344 0.5 PASS BLE_1M Ant1 2440 0.656 2439.688 2440.344 0.5 PASS BLE_1M Ant1 2480 0.652 2479.688 2480.340 0.5 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 2 of 19 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 3 of 19 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 1.0285 2401.5088 2402.5373 --- --- BLE_1M Ant1 2440 1.0333 2439.5095 2440.5428 --- --- BLE_1M Ant1 2480 1.0375 2479.5030 2480.5405 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 4 of 19 Test Graphs BLE_1M-Ant1-2402 BLE_1M-Ant1-2440 BLE_1M-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 5 of 19 Appendix C: Maximum peak conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Perk Power[dBm] Conducted Limit[dBm] Verdict BLE_1M Ant1 2402 1.01 ≤30 PASS BLE_1M Ant1 2440 0.65 ≤30 PASS BLE_1M Ant1 2480 -0.11 ≤30 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 6 of 19 Test Graphs Peak BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 7 of 19 Appendix D: Maximum peak power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_1M Ant1 2402 -13.42 ≤8.00 PASS BLE_1M Ant1 2440 -15.64 ≤8.00 PASS BLE_1M Ant1 2480 -16.06 ≤8.00 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 8 of 19 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 9 of 19 Appendix E: Band edge measurements Test Result TestMode Antenna ChName Frequency[MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 Low 2402 0.03 -50.42 ≤-19.97 PASS BLE_1M Ant1 High 2480 -0.44 -49.45 ≤-20.44 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 10 of 19 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 11 of 19 Appendix F: Conducted Spurious Emission Test Result TestMod e Antenn a Frequency[MHz ] FreqRange [MHz] RefLeve l [dBm] Result[dBm ] Limit[dBm ] Verdic t BLE_1M Ant1 2402 0~Referenc e -0.31 -0.31 --- PASS BLE_1M Ant1 2402 30~1000 -0.31 -62.96 ≤-20.31 PASS BLE_1M Ant1 2402 1000~26500 -0.31 -50.17 ≤-20.31 PASS BLE_1M Ant1 2440 0~Referenc e 0.37 0.37 --- PASS BLE_1M Ant1 2440 30~1000 0.37 -62.71 ≤-19.63 PASS BLE_1M Ant1 2440 1000~26500 0.37 -49.29 ≤-19.63 PASS BLE_1M Ant1 2480 0~Referenc e -0.61 -0.61 --- PASS BLE_1M Ant1 2480 30~1000 -0.61 -62.9 ≤-20.61 PASS BLE_1M Ant1 2480 1000~26500 -0.61 -50.4 ≤-20.61 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 12 of 19 Test Graphs BLE_1M-Ant1-2402-0~Reference-PASS BLE_1M-Ant1-2402-30~1000-PASS BLE_1M-Ant1-2402-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 13 of 19 BLE_1M-Ant1-2440-0~Reference-PASS BLE_1M-Ant1-2440-30~1000-PASS BLE_1M-Ant1-2440-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 14 of 19 BLE_1M-Ant1-2480-0~Reference-PASS BLE_1M-Ant1-2480-30~1000-PASS BLE_1M-Ant1-2480-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 15 of 19 Appendix G: Duty Cycle Test Result TestMode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] BLE_1M Ant1 2402 0.39 0.62 62.90 2.01 BLE_1M Ant1 2440 0.40 0.63 63.49 1.97 BLE_1M Ant1 2480 0.40 0.63 63.49 1.97 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 16 of 19 Test Graphs NTNV-BLE_1M-Ant1-2402 NTNV-BLE_1M-Ant1-2440 NTNV-BLE_1M-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-BLE Page 17 of 19 Appendix H: Emissions in Restricted Bands Test Result TestMode Antenna ChName Frequenc y[MHz] Detector Freq [MHz] Result [dBm] Limit [dBm] Result [dBuV/m] Limit [dBuV/m] Verdict BLE_1M Ant1 Low 2402 Peak 2390.000 -51.27 ≤-21.20 43.93 ≤74 PASS BLE_1M Ant1 Low 2402 Peak 2310.000 -52.73 ≤-21.20 42.47 ≤74 PASS BLE_1M Ant1 Low 2402 Peak 2380.220 -47.71 ≤-21.20 47.49 ≤74 PASS BLE_1M Ant1 Low 2402 AV 2390.000 -57.94 ≤-41.20 37.26 ≤54 PASS BLE_1M Ant1 Low 2402 AV 2310.000 -58.48 ≤-41.20 36.72 ≤54 PASS BLE_1M Ant1 Low 2402 AV 2386.835 -56.96 ≤-41.20 38.24 ≤54 PASS BLE_1M Ant1 High 2480 Peak 2483.500 -50.21 ≤-21.20 44.99 ≤74 PASS BLE_1M Ant1 High 2480 Peak 2500.000 -51.12 ≤-21.20 44.08 ≤74 PASS BLE_1M Ant1 High 2480 Peak 2493.680 -47.49 ≤-21.20 47.71 ≤74 PASS BLE_1M Ant1 High 2480 AV 2483.500 -56.07 ≤-41.20 39.13 ≤54 PASS BLE_1M Ant1 High 2480 AV 2500.000 -57.35 ≤-41.20 37.85 ≤54 PASS BLE_1M Ant1 High 2480 AV 2483.520 -56.07 ≤-41.20 39.13 ≤54 PASS Note： 1. The Antenna Gain is compensated in the graph. 2. The limit in dBm for average detector is conversion from 54dBuV/m, according to 15.209(a). The limit in dBm for peak detector is 20dB above the limit of average detector in dBm. Shenzhen Tongzhou Testing …

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 1 of 19 Appendix Test Data for SRD (Conducted Measurement) Product Name: Wireless Mechanical Keyboard Trade Mark: Keychron Test Model: Q0 Max FCC ID: 2BGKB-Q0MAX Environmental Conditions Temperature: 23.8°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Hugo Chen NOTE N/A Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict SRD Ant1 2402 1.092 2401.468 2402.560 0.5 PASS SRD Ant1 2440 1.128 2439.468 2440.596 0.5 PASS SRD Ant1 2480 0.952 2479.472 2480.424 0.5 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 2 of 19 Test Graphs SRD-Ant1-2402-PASS SRD-Ant1-2440-PASS SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 3 of 19 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict SRD Ant1 2402 2.0652 2401.0159 2403.0811 --- --- SRD Ant1 2440 2.0568 2439.0221 2441.0789 --- --- SRD Ant1 2480 2.0797 2479.0110 2481.0907 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 4 of 19 Test Graphs SRD-Ant1-2402 SRD-Ant1-2440 SRD-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 5 of 19 Appendix C: Maximum peak conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict SRD Ant1 2402 1.00 ≤30 PASS SRD Ant1 2440 0.83 ≤30 PASS SRD Ant1 2480 0.02 ≤30 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 6 of 19 Test Graphs Peak SRD-Ant1-2402-PASS SRD-Ant1-2440-PASS SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 7 of 19 Appendix D: Maximum peak power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict SRD Ant1 2402 -15.87 ≤8.00 PASS SRD Ant1 2440 -17.32 ≤8.00 PASS SRD Ant1 2480 -17.86 ≤8.00 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 8 of 19 Test Graphs SRD-Ant1-2402-PASS SRD-Ant1-2440-PASS SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 9 of 19 Appendix E: Band edge measurements Test Result TestMode Antenna ChName Frequency[MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict SRD Ant1 Low 2402 0.28 -33.77 ≤-19.72 PASS SRD Ant1 High 2480 -1.48 -50.18 ≤-21.48 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 10 of 19 Test Graphs SRD-Ant1-2402-PASS SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 11 of 19 Appendix F: Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict SRD Ant1 2402 0~Reference 0.58 0.58 --- PASS SRD Ant1 2402 30~1000 0.58 -62.54 ≤-19.42 PASS SRD Ant1 2402 1000~26500 0.58 -50.21 ≤-19.42 PASS SRD Ant1 2440 0~Reference 0.07 0.07 --- PASS SRD Ant1 2440 30~1000 0.07 -62.42 ≤-19.93 PASS SRD Ant1 2440 1000~26500 0.07 -49.44 ≤-19.93 PASS SRD Ant1 2480 0~Reference -0.47 -0.47 --- PASS SRD Ant1 2480 30~1000 -0.47 -63.07 ≤-20.47 PASS SRD Ant1 2480 1000~26500 -0.47 -50.75 ≤-20.47 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 12 of 19 Test Graphs SRD-Ant1-2402-0~Reference-PASS SRD-Ant1-2402-30~1000-PASS SRD-Ant1-2402-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 13 of 19 SRD-Ant1-2440-0~Reference-PASS SRD-Ant1-2440-30~1000-PASS SRD-Ant1-2440-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 14 of 19 SRD-Ant1-2480-0~Reference-PASS SRD-Ant1-2480-30~1000-PASS SRD-Ant1-2480-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 15 of 19 Appendix G: Duty Cycle Test Result TestMode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] SRD Ant1 2402 0.21 0.62 33.87 4.70 SRD Ant1 2440 0.21 0.62 33.87 4.70 SRD Ant1 2480 0.21 0.63 33.33 4.77 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 16 of 19 Test Graphs NTNV-SRD-Ant1-2402 NTNV-SRD-Ant1-2440 NTNV-SRD-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 17 of 19 Appendix H: Emissions in Restricted Bands Test Result TestMode Antenna ChName Frequenc y[MHz] Detector Freq [MHz] Result [dBm] Limit [dBm] Result [dBuV/m] Limit [dBuV/m] Verdict SRD Ant1 Low 2402 Peak 2390.000 -50.02 ≤-21.20 45.18 ≤74 PASS SRD Ant1 Low 2402 Peak 2310.000 -52.62 ≤-21.20 42.58 ≤74 PASS SRD Ant1 Low 2402 Peak 2364.785 -47.98 ≤-21.20 47.22 ≤74 PASS SRD Ant1 Low 2402 AV 2390.000 -55.12 ≤-41.20 40.08 ≤54 PASS SRD Ant1 Low 2402 AV 2310.000 -56.07 ≤-41.20 39.13 ≤54 PASS SRD Ant1 Low 2402 AV 2369.930 -54.36 ≤-41.20 40.84 ≤54 PASS SRD Ant1 High 2480 Peak 2483.500 -45.86 ≤-21.20 49.34 ≤74 PASS SRD Ant1 High 2480 Peak 2500.000 -51.07 ≤-21.20 44.13 ≤74 PASS SRD Ant1 High 2480 Peak 2483.520 -45.86 ≤-21.20 49.34 ≤74 PASS SRD Ant1 High 2480 AV 2483.500 -52.14 ≤-41.20 43.06 ≤54 PASS SRD Ant1 High 2480 AV 2500.000 -54.37 ≤-41.20 40.83 ≤54 PASS SRD Ant1 High 2480 AV 2483.520 -52.14 ≤-41.20 43.06 ≤54 PASS Note： 1. The Antenna Gain is compensated in the graph. 2. The limit in dBm for average detector is conversion from 54dBuV/m, according to 15.209(a). The limit in dBm for peak detector is 20dB above the limit of average detector in dBm. Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: TZ240505669-SRD Page 18 of 19 Test Graphs SRD-Ant1-2402-PASS SRD-Ant1-2402-PASS SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-Q0MAX Report No.: …

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Report No.: TZ240505669-BLE Page 1 of 34 FCC TEST REPORT Test report On Behalf of Keychron Technology (Shenzhen) Co., Ltd. For Wireless Mechanical Keyboard Model No: Q0 Max FCC ID: 2BGKB-Q0MAX Prepared for : Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: 2024/5/14 ~ 2024/5/20 Date of Report: 2024/5/21 Report Number: TZ240505669-BLE The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: TZ240505669-BLE Page 2 of 34 TEST RESULT CERTIFICATION Applicant’s name ................. : Keychron Technology (Shenzhen) Co., Ltd. Address ................................. : 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen Manufacture's Name ............ : Keychron Technology (Shenzhen) Co., Ltd. Address ................................. : 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen Product description Trade Mark: Keychron Product name ............................ : Wireless Mechanical Keyboard Model and/or type reference : Q0 Max Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing Co.,Ltd takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test…

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