2A5FV-MAX43D printer

All pictures are for illustrative purposes only, actual product may vary due to product optimization MAX4 3D printer There is QIDI Studio slicing software in the USB flash drive. After installing and operating it, you can learn how to use the software in the User Manual. Do not place the machine near flammable or explosive materials or high-temperature sources. Please place the machine in a ventilated, cool, and low-dust environment. Ensure the machine is powered off (unplug power cord) before performing maintenance or modifications. Modifying system files or installing non-official plugins constitutes a voluntary waiver of official technical support. Users assume all risks associated with such actions, including firmware malfunctions, system failures, or other issues, which are explicitly excluded from warranty coverage. To restore the original system state, perform a "Factory Reset" via the settings interface. There are manuals, slicer software and other related information in the USB flash drive. (The information in the USB flash drive may not be the latest. You can obtain the latest information by contacting the After-sales Service marked at the end.) If the machine is not used for a long time, please pay attention to protect the printer from dust and damp. If the machine is in standby mode for a long time, please unplug the power of it. Regular maintenance of the printer is essential. When the printer is powered off, use a dry cloth to clean the printer body, removing dust, residual filaments, and foreign objects from the optical axes. The linear guides and Z-axis lead screws require periodic cleaning and lubrication. After printing, use the residual temperature of the print head to clean the filament around the nozzle with the dedicated tools in time. Do not touch either of these parts with your bare hands. Do not place the printer in a vibrating or other unstable environment. Otherwise the shaking of the machine will affect the printing quality. There is a potential risk of burns: the print head of the QIDI printers can reach temperatures above 300 °C, while the hot bed can reach temperatures above 100 °C. Do not touch either of these parts with your bare hands. The printer contains high-speed moving parts, so be careful of hands pinching. Children should be under constant supervision when using QIDI products. Never reach inside QIDI printers while they are in operation. Before applying power to the machine, check that the voltage is correct. Usage Notice QIDI Studio Glass Top Cover Power Switch Power Cord Port Hot Bed Status Indicator Chamber Circulation Fan(HEPA-H12 filter can be placed) Part Cooling Fan USB Port Touch Screen Right Side Glass Window Chamber Heating Kit PEI Magnetic Build Plate Print Head Printer Introduction Print Head Introduction BOX Interface Feed Port Left Side Glass Window Extension Bracket Fixing Block Expand Interface Air Outlet Excess Chute Ethernet Cable Port Belt Tensioner Hot End Cooling Fan Print Head Front Cover Filament Run Out Sensor Cutter Extruder Gear Auxiliary Part Cooling Fan Hot End Filament Spool Holder Holder Cover Door Handle Power Cord Allen Key (H1.27、H1.5、H2、H2.5、H3) 7mm Spanner Flat Head Screwdriver Scraper Filament Extension Rack And Pneumatic Head Glue Stick Spare Parts Kit USB 2.0 Flash Drive Ethernet Cable Lubricant Oil Machine Accessories Take Out the Machine 1.Open the packing box and take out ① the accessory box, ② the packaging box for the upper cover glass, the top foam, and the quick start guide. 2.Grab the top handle of the moisture-proof bag to lift out the printer, and place the printer on a stable surface. The printer is heavy, so it is recommended to take it out with the help of another person. *Keep packaging materials and screws for shipping ① ② Install the Door Handle Plug in the Power Cable and Power on Take out the door handle, 3x8 screws, and plastic plugs from the accessory box. First, insert the plastic plugs into the corresponding holes, then align the handle with the holes on the glass, and fasten it with the 3x8 screws. Take out the power cord from the accessory box, plug the power cord into a power outlet, and turn on the power switch. Follow the on-screen instructions to complete the startup setup. *Before powering on, ensure the voltage label near the power socket matches your region. Remove the Lead Screw Protectors Unlock the Hot Bed Pull out the plastic protective covers on top of the left and right lead screws to remove them. During the removal process, the lead screws may shake slightly, which is a normal phenomenon. Remove the foam protective pads that secure the platform. Unlock the Print Head Load Filament 1.Remove the foam protective pads that secure the peint head. 1.Install the filament extension rack on the extension bracket fixing block. 2.Install the Filament Spool Holder on the Filament Extension Rack. 2.Take out the print head box. ① ② Take out the PTFE tube from the accessory box. Insert one end into the pneumatic head of the filament extension rack, and pass the other end through the feed port on the back of the machine (it needs to go through two pneumatic heads). Then pass it through the PTFE clip on the track chain, and finally insert it into the feed port of the print head. Insert the filament into the PTFE tube and keep pushing until the filament is fully inserted into the extruder gear and can no longer be pushed. Click the button to start printing. *Pre-saved models files use PLA Rapido filament by default. *It is recommended to install the holder cover on the filament spool holder to prevent loss. Tips 1. Some other brands of ABS filaments are less heat resistant and it is recommended to set the chamber temperature no more than 55 degrees Celsius. Otherwise the filaments may be softened in advance and cause clogging. 2. If the filaments do not stick to the print platform: 1) Please check if the nozzle is far away from the print plate, you can adjust the platform upward by Z-offset…

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ZHEJIANG QIDI TECHNOLOGY CO.,LTD Covered Equipment Certification Attestation Letter 12/10/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2A5FV-MAX4 ZHEJIANG QIDI TECHNOLOGY CO.,LTD (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. ZHEJIANG QIDI TECHNOLOGY CO.,LTD (“the 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. ZHEJIANG QIDI TECHNOLOGY CO.,LTD (“the applicant”) certifies that the equipment for which authorization is sought does not include 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 pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). <Signature>: Name: Xue Diqiang Title: Manager Company: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Date: 12/10/2025

ZHEJIANG QIDI TECHNOLOGY CO.,LTD * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 12/10/2025 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2A5FV-MAX4 FRN of applicant: 0032051849 Per section 2.911(d)(7) of the FCC rules, [ZHEJIANG QIDI TECHNOLOGY CO.,LTD] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Herland International Trading Inc FCC Registration Number (FRN): 0036324101 Physical U.S. Company Address: 1370 Valley Vista Dr Ste 200 Diamond Bar, CA 91765 Contact Person: Jianfeng Gao Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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 the equipment. Applicant Signed: Signed: Printed name: Xue Diqiang Title: Manager Company Name: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Date: 12/10/2025 Agent Signed (if different from Applicant): Signed: Printed name: Jianfeng Gao Title: Manager Company Name: Herland International Trading Inc Date: 12/10/2025

ZHEJIANG QIDI TECHNOLOGY CO.,LTD 2025-12-10 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2A5FV-MAX4 Product Name: 3D printer Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature>: Name: Xue Diqiang Title: Manager Company: ZHEJIANG QIDI TECHNOLOGY CO.,LTD

ZHEJIANG QIDI TECHNOLOGY CO.,LTD 2025-12-10 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen DL Testing Technology Co., Ltd.（101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China）to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with ZHEJIANG QIDI TECHNOLOGY CO.,LTD（No.709 Huaguang Road, Tingtian Street, Wenzhou City, Zhejiang Province） <Signature>: Name: Xue Diqiang Title: Manager Company: ZHEJIANG QIDI TECHNOLOGY CO.,LTD

ZHEJIANG QIDI TECHNOLOGY CO.,LTD 2025-12-10 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, <Signature>: Name: Xue Diqiang Title: Manager Company: ZHEJIANG QIDI TECHNOLOGY CO.,LTD

ZHEJIANG QIDI TECHNOLOGY CO.,LTD FCC ID: 2A5FV-MAX4 Product Similarity Declaration Applicant: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Address: No.709 Huaguang Road, Tingtian Street, Wenzhou City, Zhejiang Province Manufacturer: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Address: No.709 Huaguang Road, Tingtian Street, Wenzhou City, Zhejiang Province Product Name: 3D printer Trade Mark: N/A Model Number: Max4, Plus5 We (ZHEJIANG QIDI TECHNOLOGY CO.,LTD) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), All models are the same as the samples except for the model name, appearance color. <Signature>: Name: Xue Diqiang Title: Manager Company: ZHEJIANG QIDI TECHNOLOGY CO.,LTD

ZHEJIANG QIDI TECHNOLOGY CO.,LTD FCC ID: 2A5FV-MAX4 Product function Declaration Applicant: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Address: No.709 Huaguang Road, Tingtian Street, Wenzhou City, Zhejiang Province Manufacturer: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Address: No.709 Huaguang Road, Tingtian Street, Wenzhou City, Zhejiang Province Product Name: 3D printer Trade Mark: N/A Model Number: Max4, Plus5 We (ZHEJIANG QIDI TECHNOLOGY CO.,LTD) here by state that The product has (WiFi5G+BT) function at the beginning of design. However, due to the iteration of the product, this function is no longer required at present, so through the (Software mask) method, the function is forced off, and the product (FCC ID: 2A5FV-MAX4) no longer has the (WiFi5G+BT) function. <Signature>: Name: Xue Diqiang Title: Manager Company: ZHEJIANG QIDI TECHNOLOGY CO.,LTD

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(External Photos) Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※

Size: 25*20mm Model.: Max4 FCC ID: 2A5FV-MAX4 Label location

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(Internal Photos) Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ANT Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※

FCC ID: 2A5FV-MAX4 RF Exposure Evaluation 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 KDB 447498 D01 V06 and 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, middle and highest channel individually. Test Result of RF Exposure Evaluation wifi 2.4G mode Channel Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 802.11b 17.06 50.8159 0.0205 1.0 PASS 802.11g 14.59 28.7740 0.0116 1.0 PASS 802.11n HT20 14.05 25.4097 0.0102 1.0 PASS 802.11n HT40 19.02 79.7995 0.0321 1.0 PASS Remark: antenna gain=3.06dBi

科技有限公司 SHENZHEN SUNKINGTECHNOLOGYCo., LTD 承 认 书 SPEC IFICATI ON FOR APPROVAL 客 户 名 称 CUS TOMER NAM E: 产 品 名 称 PRODUCT NAME: WIFI ANT P/N SK- 客 户 料 号 CUSTOMER GX RF-3212-2.4002 :REV: A 内部结构 Internal structure： MANUFACTURER SIGNATUR IPEX E CUSTOMER SIGNATURE CHECKED BY: AUDITOR BY: APPROVED BY: DATE: 科技有限公司 SHENZHEN SUNKING TECHNOLOGY Co.,LTD 履历表Resume 版次号 EditionNo. 修改章节 Modify chapter 修改页码 Modify Page 生效日期 Effective date 文件和资料更改内容 Fileanddatachanges 更改记录人 Change recorder 科技有限公司 SHENZHEN SUNKING TECHNOLOGY Co.,LTD Contents DescriptionPage 1、封面Cover----------------------------------------------------1 2、履历表Resume-----------------------------------------------2 3、目录Contents--------------------------------------------------3 4、规格表Specificationssheets-------------------------------4 5、成品图Endproductchart----------------------------------5 6、测试报告Testingreport----------------------------------6-8 科技有限公司 SHENZHEN SUNKING TECHNOLOGY Co.,LTD 产品主要技术参数 Main technical specifi cations 主要技术指标Main technical specifi cations 频率范围 （MHZ） 2400-2500 Fre quency Ra nge (M HZ) 2400-2500 中心频率 特性阻抗(Ω ) 50±10 Im pedance(Ω) 50±10 增益(dBi) 3.06 Gain(d Bi ) 3.06 反射损耗 ≤-9.5Re turn Loss(d B)≤-9.5 输出电压 驻波比 ≤2.0VSWR≤2.0 极化方式 垂直极化Polari zationLinear,Vertical 方向性 全向性Ra diationOmni-directional 连接方式 Co nnector Typ Metal touch e 物理性 Metal touch 能Physical Pro pert ies 天线本体材料 Antenna Ba se 工作温度 -2 0°C~+60°COpera ting Temp-2 0°C~+60°C 保存温度 -2 0°C~+70°CStora ge Temp-2 0°C~+70°C 科技有限公司 SHENZHEN SUNKING TECHNOLOGY Co.,LTD 测试报告 网络分析仪测试报告 暗室2D、3DRaditationPattern 2.4GHzGain(Peak):2.77dBiEfficiency:76.6% 2.45GHzGain(Peak):2.93dBiEfficiency:75.9% 科技有限公司 SHENZHEN SUNKING TECHNOLOGY Co.,LTD 2.483 GHzGain(P eak): 3.06dBiEffi ciency:77.1%

Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-251119038R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 48 FCC Part 15C Test Report FCC ID: 2A5FV-MAX4 Applicant: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Address: No.709 Huaguang Road, Tingtian Street, Wenzhou City, Zhejiang Province Manufacturer: ZHEJIANG QIDI TECHNOLOGY CO.,LTD Address: No.709 Huaguang Road, Tingtian Street, Wenzhou City, Zhejiang Province Product Name: 3D printer Trade Mark: N/A Model Number: Max4, Plus5 Date of Receipt: Nov. 19, 2025 Test Date: Nov. 19, 2025 - Dec. 04, 2025 Date of Report: Dec. 04, 2025 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China Applicable Standards: FCC PART 15 C 15.247 ANSI C63.10:2020 Test Result: Pass Report Number: DLE-251119038R Prepared (Test Engineer): Alisa Song Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-251119038R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 48 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 6 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 7 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 3 . EMC EMISSION TEST 9 3.1 CONDUCTED EMISSION MEASUREMENT 9 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 9 3.1.2 TEST PROCEDURE 9 3.1.3 DEVIATION FROM TEST STANDARD 9 3.1.4 TEST SETUP 10 3.1.5 EUT OPERATING CONDITIONS 10 3.1.6 TEST RESULTS 10 3.2 RADIATED EMISSION MEASUREMENT 13 3.2.1 RADIATED EMISSION LIMITS 13 3.2.2 TEST PROCEDURE 14 3.2.3 DEVIATION FROM TEST STANDARD 14 3.2.4 TEST SETUP 14 3.2.5 EUT OPERATING CONDITIONS 15 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 16 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 17 3.2.8 TEST RESULTS (1GHZ~25GHZ) 19 3.3 RADIATED BAND EMISSION MEASUREMENT 23 3.3.1 TEST REQUIREMENT: 23 3.3.2 TEST PROCEDURE 23 3.3.3 DEVIATION FROM TEST STANDARD 23 3.3.4 TEST SETUP 24 3.3.5 EUT OPERATING CONDITIONS 24 3.4 CONDUCTED BAND EDGE EMISSION&CONDUCTED SPURIOUS EMISSIONS MEASUREMENT 29 3.4.1 APPLICABLE STANDARD 29 3.4.2 TEST PROCEDURE 29 3.4.3 DEVIATION FROM STANDARD 29 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-251119038R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 48 Table of Contents Page 3.4.4 TEST SETUP 29 3.4.5 EUT OPERATION CONDITIONS 29 3.4.6 TEST RESULTS 29 4 . AVERAGE OUTPUT POWER 34 4.1 APPLIED PROCEDURES / LIMIT 34 4.1.1 TEST PROCEDURE 34 4.1.2 DEVIATION FROM STANDARD 34 4.1.3 TEST SETUP 34 4.1.4 EUT OPERATION CONDITIONS 34 4.1.5 TEST RESULTS 35 5 . POWER SPECTRAL DENSITY TEST 38 5.1 APPLIED PROCEDURES / LIMIT 38 5.1.1 TEST PROCEDURE 38 5.1.2 DEVIATION FROM STANDARD 38 5.1.3 TEST SETUP 38 5.1.4 EUT OPERATION CONDITIONS 38 5.1.5 TEST RESULTS 39 6 . 6DB BANDWIDTH TEST 42 6.1 APPLIED PROCEDURES / LIMIT 42 6.1.1 TEST PROCEDURE 42 6.1.2 DEVIATION FROM STANDARD 42 6.1.3 TEST SETUP 42 6.1.4 EUT OPERATION CONDITIONS 42 6.1.5 TEST RESULTS 43 7 . ANTENNA REQUIREMENT 48 7.1 STANDARD REQUIREMENT 48 7.2 EUT ANTENNA 48 8 . TEST SEUUP PHOTO 48 9 . EUT PHOTO 48 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-251119038R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 48 1.. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.205, 15.209, 15.247(d) Radiated Spurious Emission PASS 15.209, 15.205 Band Edge Emission PASS 15.247(d) Conducted Spurious Emissions PASS 15.247(b) Average Output Power PASS 15.247(a)(2) 6dB Bandwidth PASS 15.247(e) Power Spectral Density PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Test lab: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China FCC Test Firm Registration Number: 854456 Designation Number: CN1307 IC Registered No.: 27485 CAB ID.: CN0118 1.1. MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% 8 6dB Bandwidth ±0.2% 9 Power Spectral Density ±2.45dBm Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-251119038R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 48 2.. GENERAL INFORMATION 2.1. GENERAL DESCRIPTION OF EUT Product Name: 3D printer Trade Mark: N/A Model Number: Max4, Plus5 Test Model: Max4 Model Difference All models are same as the samples except model name and appearance color, they have the same structure and circuit. Operation Frequency: 2412~2462 MHz for 802.11b/g/nHT20 2422~2452 MHz for 802.11nHT40 Channel numbers: 11 Channels for 802.11b/g/n(HT20) 7 channels for 802.11nHT40 Channel separation: 5MHz Modulation technology: 802.11b: DSSS (CCK, DQPSK, DBPSK) 802.11g/n(20/40): OFDM(QPSK, BPSK, 16-QAM, 64-QAM) Rate of Transmitter 802.11b: 11/5.5/2/…

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Shenzhen DL Testing Technology Co., Ltd. EUT TEST PHOTO Radiated Measurement Photos Shenzhen DL Testing Technology Co., Ltd. Conducted Measurement Photos ※※※※※ END OF REPORT ※※※※※