2ALZ7-WM260107WiFi module

ShenzhenRF-starTechnologyCo.,Ltd. Wi-FiModuleRF-WM-C3B1 HardwareDatasheet ShenzhenRF-starTechnologyCo.,Ltd. 2 目录 DeviceOverview......................................................................................................................................3 Description...........................................................................................................................................3 FunctionalBlockDiagram...................................................................................................................3 ModuleParameters.................................................................................................................................4 Moduledimensionsanddefinitions.........................................................................................................5 Dimension............................................................................................................................................5 Pinfigure..............................................................................................................................................5 FCCWarning...........................................................................................................................................7 ContactUs...............................................................................................................................................9 ShenzhenRF-starTechnologyCo.,Ltd. 3  DeviceOverview Description RF-WM-C3B1moduleisanewembeddedWi-FimodulelaunchedbyRF- star.ThemoduleadoptsESP32-C3FH4chipdesign,built-inhighperformance RISC-VMCU,andcontainsavarietyofperipherals:UART,SPI,I2C,I2S,GPIO, etc. Themodulesupports802.11b/g/nWi-Fistandardl,andhaslargecapacity storagespace(FLASH:4MB,FLASHisexternal,upto128MB,OM:384KB)and runningspace(SRAM:400KB+RTCRAM:8KB). FunctionalBlockDiagram Figure1.FunctionalBlockDiagram ShenzhenRF-starTechnologyCo.,Ltd. 4  ModuleParameters SupplyPowerVoltage3.0V~3.6V OperatingTemperature-40°C～+85°C StorageTemperature-40°C～+125°C PackageSMT Operatingfrequency2.412－2.462GHz Wirelessnetworkstandard802.11b/g/n Receivingsensitivity(typ) 11b(11Mbps@CCK):-88.6dBm 11g(54Mbps@OFDM):–76.6dBm 11n(HT20@MCS7):–74.8dBm 11n(HT40@MCS7):–71.4dBm ShenzhenRF-starTechnologyCo.,Ltd. 5  Moduledimensionsanddefinitions Dimension Figure2.Thedimensionofmodule Pinfigure Figure 3.Thepinfigureofmoudle ShenzhenRF-starTechnologyCo.,Ltd. 6 PinNameDescription 1RFOUTRFsignaloutputpin 2GNDGround 3GNDGround 4VCC3.3Vpowersupply 5GPIO0 6GPIO1 7GPIO2 8GPIO3 9GPIO4 10NC 11CHIP_ENChipenablepin 12GPIO5 13NC 14NC 15NC 16GPIO6 17NC 18GND 19VCC3.3Vpowersupply 20NC 21NC 22NC 23NC 24GPIO8 25GPIO7 26GPIO10 27GPIO9 28GPIO18USB_D- 29GPIO19USB_D+ 30U0RXDUARTRXD 31U0TXDUARTTXD 32NC 33NC 34GND ShenzhenRF-starTechnologyCo.,Ltd. 7 FCCWarning FCCregulatorycompliancestatement §15.19Statement ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions:(1) thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived, includinginterferencethatmaycauseundesiredoperation. §15.21Informationtouser Warning:changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoid theuser’sauthoritytooperatetheequipment. ListofapplicableFCCrules: 47CFRPart15.247 Summarizethespecificoperationaluseconditions ThismodulecanbeusedinIOTdevices,theinputvoltagetothemoduleisnominally3.3V. Limitedmoduleprocedures Thismoduleisasinglemodule. Traceantennadesigns Theantennaisnotatraceantenna. RFexposureconsiderations ThisModulecomplieswithFCCradiationexposurelimitssetforthforanuncontrolledenvironment.This equipmentshouldbeinstalledandoperatedwithaminimumdistanceof20cmbetweentheradiatorandyour body.Thistransmittermustnotbeco-locatedoroperatinginconjunctionwithanyotherantennaortransmitter. Antennas Ifyoudesiretoincreaseantennagainandeitherchangeantennatypeorusesameantennatypecertified,a ClassIIpermissivechangeapplicationisrequiredtobefiledbyus,oryou(hostmanufacturer)cantake responsibilitythroughthechangeinFCCID(newapplication)procedurefollowedbyaClassIIpermissive changeapplication. Labelandcomplianceinformation PleasenoticethatiftheFCCidentificationnumberisnotvisiblewhenthemoduleisinstalledinsideanother device,thentheoutsideofthedeviceintowhichthemoduleisinstalledmustalsodisplayalabelreferringto theenclosedmodule.Thisexteriorlabelcanusewordingsuchasthefollowing:“ContainsFCCID:2ALZ7- WM260107”anysimilarwordingthatexpressesthesamemeaningmaybeused. §15.19Labellingrequirementsshallbecompliedonenduserdevice. Labellingrulesforspecialdevice,pleasereferto§2.925,§15.19(a)(5)andrelevantKDBpublications.ForE- label,pleasereferto§2.935. Informationontestmodesandadditionaltestingrequirements TheOEMintegratorisresponsibleforensuringthattheend-userhasnomanualinstructiontoremoveor installmodule. Themoduleislimitedtoinstallationinmobileapplication,aseparateapprovalisrequiredforallother operatingconfigurations,includingportableconfigurationswithrespectto§2.1093anddifferenceantenna configurations. FCCotherParts,Part15BComplianceRequirementsforHostproductmanufacturer ThismodulartransmitterisonlyFCCauthorizedforthespecificrulepartslistedonourgrant,hostproduct manufacturerisresponsibleforcompliancetoanyotherFCCrulesthatapplytothehostnotcoveredbythe modulartransmittergrantofcertification. Hostmanufacturerinanycaseshallensurehostproductwhichisinstalledandoperatingwiththemoduleisin compliantwithPart15Brequirements. PleasenotethatForaClassBorClassAdigitaldeviceorperipheral,theinstructionsfurnishedtheuser manualoftheend-userproductshallincludestatementsetoutin§15.105Informationtotheuserorsuch similarstatementandplaceitinaprominentlocationinthetextofhostproductmanual.Originaltextsas ShenzhenRF-starTechnologyCo.,Ltd. 8 following: ForClassB Note:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart 15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionaga…

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1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: CLF Import and Export Limited Contact Name: David Chen FRN: 0033489683 Address: 1312 17th Street #692,Denver,CO 80202,Unite States Telephone No: (949)254-2565 Email: [email protected] EIN: 98-1720547 Applicant: Company name: CCL ELECTRONICS LTD Product Description: WiFi module Grantee code: 2ALZ7 FCC ID: 2ALZ7-WM260107 FRN: 0026500520 Contact Name: Joey Yip Address: Unit 1-3, 9/F., Wang Lung Industrial Building, 11 Lung Tak Street, Tsuen Wan, KongHong Telephone No: 26113000 Fax No: 26113088 Email: [email protected] [CCL ELECTRONICS LTD] certifies that, as of the date of this filing of the application with the TCB, [CLF Import and Export Limited] is our designated US agent for service of process for the above referenced FCC ID. [CCL ELECTRONICS LTD] accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [CLF Import and Export Limited] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2026/1/23 Applicant’s Name: Joey Yip US Agent’s Name: David Chen Title: Sales Manager Title: Manager Signature Signature

CCL ELECTRONICS LTD Code 00018768 Ed. 1 Item 1. The device is able to install software/program installation? ☐ Yes, go to Item 2. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. Device WiFi module Company name CCL ELECTRONICS LTD Grantee code 2ALZ7 FCC ID 2ALZ7-WM260107 FRN 0026500520 Contact name Joey Yip Address Unit 1-3, 9/F., Wang Lung Industrial Building, 11 Lung Tak Street, Tsuen Wan, KongHong Telephone number 26113000 E-mail [email protected] Chipset/module information ESP32-C3FH4 Operating System (if applicable) / Storage Capacity (hard drive or other permanent memory storage, if applicable) / 2 Item 2. Technical Requirements for Kaspersky Cybersecurity Software: # General Requirements (For all Devices) Yes / No or N/A Comments 1 Internet connection for activation and updates (For all Operating Systems) N/A # General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive N/A 2 Operating System: Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional / Ultimate SP1 or higher N/A 3 Processor: 1 GHz or higher (x86 or x64) N/A 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) N/A 5 Screen Resolution: Minimum resolution of 1024 x 768 N/A # General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS® 13 – 14 N/A 2 Memory (RAM)4 GB N/A 3 Storage: 3455 MB free space on the hard drive N/A # General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: Android™ 10 – 14 N/A 3 Screen Resolution: Minimum resolution of 320 x 480 N/A # General Requirements (for iOS devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 3 2 Operating System: iOS® 17 N/A # General Requirements (For Linux system) Yes / No or N/A Comments 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher 3 RAM: 1 GB 4 Minimum software requirements: AlmaLinux OS 8 or later; AlterOS 7.5 or later; Astra Linux Common Edition 2.12 or later; CentOS 6.7 or later; Debian GNU/Linux 10.0 or later; EulerOS 2.0 or later; Oracle Linux 7.3 or later ; Red Hat Enterprise Linux 6.7 or later ; Rocky Linux 8.5 or later ; SUSE Linux Enterprise Server 12.5 or later; Ubuntu 12.04 or later ; Uncom OS Home / Business / Education / Enterprise 2.2 or later; ALT Linux Workstaton / Workstation K / Server / Education 8 or later; ROSA Linux Workstation / Server 12 or later ; RED OS 7.3 and later ;

TCB CALL página 1 File FCC ID: 2ALZ7-WM260107 Please upload an exhibit that explains how does the TCB verify the new agent information: 1- Is the address of the agent a valid physical US mailing address (not a US post office box, not a virtual mailbox, not P.O. Boxes, not a vacant lot, not a public building, etc.) ○ We have checked if the address exists in a real and potential building (Google maps) + official US register, after this verification and the evidence below we can guarantee the following: not a US post office box not a virtual mailbox not P.O. Boxes not a vacant lot not a public building(note) ► We checked the FCC FRN Search based on the information provided by the grantee. On the official register from : https://opencorporates.com/companies/us_co/20231240414 In google: TCB CALL página 2 ► CONCLUSION by TCB: The ASOP defined and provided by grantee is VALID and confirmed. Therefore the exhibit "2ALZ7-WM260107 US Agent for Service of Process LETTER OF ATTESTATION" included in the file is ok. 2- Is the agent physically located at that valid US address such that the agent can be legally served at that address? Yes , check above 3- Has the listed agent clearly agreed in writing to serve as the agent for the grantee at that address? Yes, it is included in the exhibit "2ALZ7-WM260107 US Agent for Service of Process LETTER OF ATTESTATION" >

C5266091_X9_Ed.2 1/1 < CCL ELECTRONICS LTD > Modular Transmitter Approval Request Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Company name: FCC ID: 2ALZ7-WM260107 Gentlemen, In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Certification Guide v04r02’. FCC ID 2ALZ7-WM260107 has been examined against the following requirements. Items to be covered by Single modular transmitters. Requirement per 15.212 and KDB 996369 D01 ‘Modular Certification Guide v04r02 Y/N Comments/ Explanation from Grantee (Explain why product complies/how i t i s achieved) 1. T he radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly Y Module with shielding cover 2. T he module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal Y 3. T he module must contain power supply regulation on the module Y The modular has an onboard 3.3V regulator(integrated in RF-WM-C3B1). 4. T he module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b) Y The module has a permanently attched PCB antenna. 5. T he module must demonstrate compliance in a stand-alone configuration Y 6. T he module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements) Y 7. T he module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee Y 8. T he module must comply with RF exposure requirements Y RF cexposure evaluation performed at 20cm. The module has it’s own buffered modulation/data inputs unit. The module compliance a stand alone configuration. The module compliance all conditions provided in the integration instructions by the grantee. The label is pasted on the sheild of the module C5266091_X9_Ed.2 1/1 Items to be covered by Split modular transmitters. Requirement per 15.212 and KDB 996369 D01 ‘Modular Certification Guide v04r02 Y/N Comments/ Explanation from Grantee (Explain why product complies/how it is achieved) 9. S plit modular transmitters must meet all the requirements of a single modular in above item1 and 5 for single modular approval requirements. 10. Only the radio front end must be shielded. The physical crystal and tuning capacitors may be located external to the shielded radio elements. The interface between the split sections of the modular system must be digital with a minimum signaling amplitude of 150 mV peak- to-peak. 11. Control information and other data may be exchanged between the transmitter control elements and radio front end. 12. The sections of a split modular transmitter must be tested installed in a host device(s) similar to that which is representative of the platform(s) intended for use. 13. Manufacturers must ensure that only transmitter control elements and radio front end components that have been approved together are capable of operating together. The transmitter module must not operate unless it has verified that the installed transmitter control elements and radio front end have been authorized together. Manufacturers may use means including, but not limited to, coding in hardware and electronic signatures in software to meet these requirements, and must describe the methods in their application for equipment authorization. A limited modular approval (LMA) may be granted for single or split modular transmitters that comply partially with requirements above. Name: Joey Yip Date: 2026/1/23 Title: Sales Manager Signature of applicant

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of1 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn Product Name: W i F i m o d u l e Test Model No.: RF-WM-C3B1 EUT Constructional Details ------End------ Wi-Fi Antenna

Model: RF-WM-C3B1 FCC ID: 2ALZ7-WM260107

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of1 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn Product Name: W i F i m o d u l e Test Model No.: RF-WM-C3B1 EUT Constructional Details： -----End-----

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of 2 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn FCC ID: 2ALZ7-WM260107 RF Exposure Evaluation FCC KDB publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) 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 Friis transmission 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 Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, and highest channel individually. Shenzhen QC Testing Laboratory Co., Ltd. Page 2 of 2 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn Test Result of RF Exposure Evaluation For 2.4G Wi-Fi worst case Antenna Gain: 2.78dBi Test Frequency （MHz） Minimum Separation Distance (cm) Output Power (dBm) Target power (dBm) Target power (mW) Antenna Gain (Numeric) Power Density Limit (mW/cm 2 ) Power Density At 20 cm (mW/cm 2 ) Test Results 2437 20.00 14.58 14±1 31.62 1.90 1 0.0119 Pass The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure.

Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT26AR-1177E-01 Page 1 of 66 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn FCC PART 15.247 TEST REPORT On Behalf of CCL ELECTRONICS LTD Unit 1-3, 9/F., Wang Lung Industrial Building, 11 Lung Tak Street, Tsuen Wan, KongHong FCC ID: 2ALZ7-WM260107 Model: RF-WM-C3B1 January 22, 2026 T hi s Repor t Concer ns: Or iginal Report Equi pm ent T ype: W iFi m odule Test Engineer: Fan Yang / Report Number: QCT26AR-1177E-01 Test Date: January 20~22, 2026 Test Result: Pass Reviewed By: Vincent Yang/ Approved By: Kendy Wang / Prepared By: Shenzhen QC Testing Laboratory Co., Ltd. East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT26AR-1177E-01 Page 2 of 66 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn Table of Contents 1. GENERAL INFORMATION ................................................................................................. 5 1.1 Product Description for Equipment under Test (EUT) ............................................................. 5 1.2 System Test Configuration ...................................................................................................... 6 1.3 Test Facility.............................................................................................................................. 7 1.4 Measurement Uncertainty ........................................................................................................ 7 2. SUMMARY OF TEST RESULTS ........................................................................................ 8 3. LIST OF TEST AND MEASUREMENT INSTRUMENTS .................................................... 9 3.1 Radiated Emission Test ........................................................................................................... 9 3.2 RF Conducted test ................................................................................................................... 9 3.3 Conducted Emission Test ...................................................................................................... 10 4. ANTENNA REQUIREMENT .............................................................................................. 11 5. CONDUCTED EMISSIONS ............................................................................................... 12 5.1 Applicable Standard............................................................................................................... 12 5.2 Limit ....................................................................................................................................... 12 5.3 Test setup .............................................................................................................................. 12 5.4 EMI Test Receiver Setup ....................................................................................................... 12 5.5 Test procedure....................................................................................................................... 12 5.6 Test Data ............................................................................................................................... 12 6. CONDUCTED PEAK OUTPUT POWER ........................................................................... 13 6.1. Applicable Standard............................................................................................................... 13 6.2. Limit ....................................................................................................................................... 13 6.3. Test setup .............................................................................................................................. 13 6.4. Test Procedure ...................................................................................................................... 13 6.5. Test Data ............................................................................................................................... 14 7. CHANNEL BANDWIDTH & 99% OCCUPIED BANDWIDTH ........................................... 15 7.1. Applicable Standard............................................................................................................... 15 7.2. Limit ....................................................................................................................................... 15 7.3. Test setup .............................................................................................................................. 15 7.4. Test Procedure ...................................................................................................................... 15 7.5. Test Data ............................................................................................................................... 16 8. POWER SPECTRAL DENSITY ........................................................................................ 30 8.1 Applicable Standard............................................................................................................... 30 8.2 Limit ....................................................................................................................................... 30 8.3 Test setup .............................................................................................................................. 30 8.4 Test Procedure .......................................................................................................…

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Antenna Specifications Electrical Characteristics: Antenna Model Name PCB antenna Frequency Range 2400-2500MHz Impedance 50R Gain(dBi) 2.78dBi Operation Temperature 0°C ~ 70 °C Manufacturer Shenzhen RF-star Technology Co., Ltd. Manufacturer Address Room 503, Block12-A5, Shenzhen Bay Science and Technology Ecological Park, Nanshan District,Shenzhen,China Antenna Size Radiation Pattern

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of 2 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn Product Name: W i F i m o d u l e Test Model No.: RF-WM-C3B1 Photograph of Test Setup Radiated Emissions (30 MHz - 1 GHz) Radiated Emissions (Above 1 GHz) Shenzhen QC Testing Laboratory Co., Ltd. Page 2 of 2 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 http://www.qctest.com.cn RF Conducted measurement ------End------