2AKLL-AD4PRO3D Printer

C566091_X23_Ed1 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: SUN BEYOND CONSULTING LTDOFFICE FRN: 0033588823 Contact Name: Peter Zhang Address: NO.448,4TH FLOOR,90 CANAL STREETBOSTONMA 02114 Telephone: +1（508）4700660 Email: [email protected] This letter is to confirm that the US Agent for Service of Process accepts responsibility to act as a local representative on behalf of Zhejiang Flashforge 3D Technology CO., Ltd. 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. Applicant: Company name: Zhejiang Flashforge 3D Technology CO., Ltd. Product Description: 3D Printer Grantee code: 2AKLL FCC ID: 2AKLL-ADVENTURER3P2 Contact Name: Qian Wang Address: No. 518, Xianyuan Road,Jinhua, Zhejiang, China Telephone No:0571-89774128 Email: [email protected] 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: 2023/05/17 Applicant’s Name:Zhejiang Flashforge 3D Technology CO., Ltd. US Agent for Service of Process’s Name:SUN BEYOND CONSULTING LTDOFFICE Title:managerTitle:CEO SignatureSignature

C5266091_X24_Ed.2 1/1 Zhejiang Flashforge 3D Technology CO., Ltd. “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Zhejiang Flashforge 3D Technology CO., Ltd. Grantee code: 2AKLL FCC ID: 2AKLL-AD4PRO Contact Name: Qian Wang Address: No. 518, Xianyuan Road, Jinhua, Zhejiang China Telephone No: 0571-89774128 Fax No: N/A Email: [email protected] i. [Zhejiang Flashforge 3D 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. The applicant must sign this certification. ii. [Zhejiang Flashforge 3D Technology CO., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Zhejiang Flashforge 3D 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 an entity producing “covered”equipment . Date: 2023/06/01 Applicant’s Name: Qian Wang Title: Machinists Helper Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Zhejiang Flashforge 3D Technology CO., Ltd. Product Similarity Declaration Product name: 3D Printer Model name: Adventurer 4 Pro, Adventurer 4, Adventurer 4 Lite FCC ID: 2AKLL-AD4PRO We (Zhejiang Flashforge 3D 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.,), the only difference is the model name. Signature: Name: Qian Wang Title: Machinists Helper No. 518, Xianyuan Road, Jinhua, Zhejiang China 2023/05/31

C5266091_X8_Ed.1 1/1 Zhejiang Flashforge 3D Technology CO., Ltd. Letter of Authorization Company: Zhejiang Flashforge 3D Technology CO., Ltd. Address: No. 518, Xianyuan Road, Jinhua, Zhejiang China Product Name: 3D Printer Model Number: Adventurer 4 Pro, Adventurer 4, Adventurer 4 Lite FCC Identifier: 2AKLL-AD4PRO We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Qian Wang Date: 2023.06.01 Title: Machinists Helper Signature of applicant:

C5266091_X10_Ed.2 1/1 Zhejiang Flashforge 3D Technology CO., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-06.01 Subject: Request for Confidentiality FCC ID: 2AKLL-AD4PRO To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Qian Wang Title: Machinists Helper 2023.06.01

Page1of5FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity ExternalPhotosoftheEUT Fig.1 Fig.2 Page2of5FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 Page3of5FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Page4of5FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7 Fig.8 Page5of5FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.9

Page1of1FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity LABELANDLOCATION LabelLocation 3DPrinter Model:Adventurer4Pro FCCID:2AKLL-AD4PRO ThisdevicecomplieswithPart15oftheFCCRules.Operationis subjecttothefollowingtwoconditions:(1)thisdevicemaynot causeharmfulinterference,and(2)thisdevicemustacceptany interferencereceived,includinginterferencethatmaycause undesiredoperation.

Page1of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity InternalPhotosoftheEUT Fig.1 Fig.2 Antenna Page2of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 Page3of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Page4of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7 Fig.8

Page1of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCCRFExposureEvaluation 1.ProductInformation FCCID2AKLL-AD4PRO Productname3DPrinter TestModelAdventurer4Pro AdditionalModelNo.PCBboard,structureandinternalofthesemodel(s)arethesame, Sonoadditionalmodelsweretested ModelDeclarationPCBboard,structureandinternalofthesemodel(s)arethesame, Sonoadditionalmodelsweretested ModelnumberAdventurer4Pro PowersupplyInput:AC100-240V,50/60Hz,4.5A,350W Hardwareversion/ Softwareversion/ FCCOperationfrequency2412~2462MHz ChannelNumber 11Channelsfor20MHzbandwidth(2412~2462MHz) 7Channelsfor40MHzbandwidth(2422~2452MHz) ModulationType IEEE802.11b:DSSS(CCK,DQPSK,DBPSK) IEEE802.11g:OFDM(64QAM,16QAM,QPSK,BPSK) IEEE802.11n:OFDM(64QAM,16QAM,QPSK,BPSK) AntennaTypeInternalAntenna AntennaGain3.2dBi(Max.) ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypeMobileDevices Page2of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity 2.EvaluationMethod SystemsoperatingundertheprovisionsofFCC47CFRsectionshallbeoperatedinamannerthatensures thatthepublicisnotexposedtoradiofrequencyenergylevelinexcessoftheCommission’sguidelines. Inaccordancewith47CFRFCCPart2SubpartJ,section2.1091thisdevicehasbeendefinedasmobile devicewherebyadistanceof0.2mnormallycanbemaintainedbetweentheuserandthedevice,andbelow RFPermissibleExposurelimitshallcomplywith. InaccordancewithKDB447498D01forSimultaneoustransmissionMPEtestexclusionapplieswhenthesum oftheMPEratiosforallsimultaneoustransmittingantennasincorporatedinahostdevice,basedonthe calculated/estimated,numericallymodelledormeasuredfieldstrengthsorpowerdensity,is≤1.0.TheMPE ratioofeachantennaisdeterminedattheminimumtestseparationdistancerequiredbytheoperating configurationsandexposureconditionsofthehostdevice,accordingtotheratiooffieldstrengthsorpower densitytoMPElimit,atthetestfrequency.Eitherthemaximumpeakorspatiallyaveragedresultsfrom measurementsornumericalsimulationsmaybeusedtodeterminetheMPEratios.Spatialaveragingdoesnot applywhenMPEisestimatedusingsimplecalculationsbasedonfar-fieldplane-waveequivalentconditions. Theantennainstallationandoperatingrequirementsforthehostdevicemustmeettheminimumtest separationdistancesrequiredbyallantennas,inbothstandaloneandsimultaneoustransmissionoperations, tosatisfycompliance. 3.Limit 3.1ReferEvaluationMethod ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01General1RFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1091:Radiofrequencyradiationexposureevaluation:mobiledevices 3.2Limit LimitsforMaximumPermissibleExposure(MPE)/ControlledExposure Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) PowerDensity (mW/cm²) AveragingTime (minute) LimitsforOccupational/ControlledExposure 0.3–3.0 3.0–30 30–300 300–1500 1500–100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100)* (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 LimitsforMaximumPermissibleExposure(MPE)/UncontrolledExposure Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) PowerDensity (mW/cm²) AveragingTime (minute) LimitsforOccupational/ControlledExposure 0.3–3.0 3.0–30 30–300 300–1500 1500–100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100)* (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequencyinMHz *=Plane-waveequivalentpowerdensity Page3of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity 4.MPECalculationMethod PredicationofMPElimitatagivendistance Equationfrompage18ofOETBulletin65,Edition97-01 S=PG/4πR² Where:S=powerdensity P=powerinputtoantenna G=powergainoftheantennainthedirectionofinterestrelativetoanisotropicradiator R=distancetothecenterofradiationoftheantenna 5.AntennaInformation InternalAntennacanonlyuseantennascertificatedasfollowsprovidedbymanufacturer; Internal Identification Antennatypeand antennanumber Operatefrequency band Maximumantenna gain Note AntennaInternalAntenna2400MHz-2500MHz3.2dBiWIFIAntenna 6.ConductedPower <2.4GWIFI> ModeChannelFrequency(MHz) MaxConductedPower (dBm) IEEE802.11b 1 241214.20 6 243714.61 11 246214.79 IEEE802.11g 1 241214.87 6 243715.26 11 246215.44 IEEE802.11n HT20 1 241213.60 6 243714.07 11 246215.86 IEEE802.11n HT40 3 242214.88 6 243715.08 9 245215.15 Page4of4FCCID:2AKLL-AD4PRO ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity 7.ManufacturingTolerance <2.4GWIFI> 11B(Peak) ChannelChannel1Channel6Channel11 Target(dBm) 14.014.014.0 Tolerance±(dB) 1.01.01.0 11G(Peak) ChannelChannel1Channel6Channel11 Target(dBm) 14.014.015.0 Tolerance±(dB)1.01.01.0 11N20SISO(Peak) ChannelChannel1Channel6Channel11 Target(dBm) 13.014.015.0 Tolerance±(dB)1.01.01.0 11N40SISO(Peak) ChannelChannel3Channel6Channel9 Target(dBm) 14.015.015.0 Tolerance±(dB)1.01.01.0 8.MeasurementResults AsdeclaredbytheApplicant,theEUTisawirelessdeviceusedinafixapplication,atleast20cmfromany bodypartoftheuserornearbypersons;fromthemaximumEUTRFoutputpower,theminimumseparation distance,r=20cm,aswellasthegainoftheusedantennarefertoantennainformation,…

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Page 21 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity BandEdgeNVNTg2462MHzAnt1Ref BandEdgeNVNTg2462MHzAnt1Emission Page 22 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity BandEdgeNVNTn202412MHzAnt1Ref BandEdgeNVNTn202412MHzAnt1Emission Page 23 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity BandEdgeNVNTn202462MHzAnt1Ref BandEdgeNVNTn202462MHzAnt1Emission Page 24 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity BandEdgeNVNTn402422MHzAnt1Ref BandEdgeNVNTn402422MHzAnt1Emission Page 25 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity BandEdgeNVNTn402452MHzAnt1Ref BandEdgeNVNTn402452MHzAnt1Emission Page 26 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity A.5ConductedRFSpuriousEmission ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTb2412Ant1-49.75-20Pass NVNTb2437Ant1-51.21-20Pass NVNTb2462Ant1-50.53-20Pass NVNTg2412Ant1-45.32-20Pass NVNTg2437Ant1-47.37-20Pass NVNTg2462Ant1-47.41-20Pass NVNTn202412Ant1-47.24-20Pass NVNTn202437Ant1-47.09-20Pass NVNTn202462Ant1-46.16-20Pass NVNTn402422Ant1-41.46-20Pass NVNTn402437Ant1-43.1-20Pass NVNTn402452Ant1-42.25-20Pass Page 27 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs Tx.SpuriousNVNTb2412MHzAnt1Ref Tx.SpuriousNVNTb2412MHzAnt1Emission Page 28 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Tx.SpuriousNVNTb2437MHzAnt1Ref Tx.SpuriousNVNTb2437MHzAnt1Emission Page 29 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Tx.SpuriousNVNTb2462MHzAnt1Ref Tx.SpuriousNVNTb2462MHzAnt1Emission Page 30 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Tx.SpuriousNVNTg2412MHzAnt1Ref Tx.SpuriousNVNTg2412MHzAnt1Emission Page 31 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Tx.SpuriousNVNTg2437MHzAnt1Ref Tx.SpuriousNVNTg2437MHzAnt1Emission Page 32 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Tx.SpuriousNVNTg2462MHzAnt1Ref Tx.SpuriousNVNTg2462MHzAnt1Emission Page 33 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Tx.SpuriousNVNTn202412MHzAnt1Ref Tx.SpuriousNVNTn202412MHzAnt1Emission Page 34 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Tx.SpuriousNVNTn202437MHzAnt1Ref Tx.SpuriousNVNTn202437MHzAnt1Emission Page 35 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticit…

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Manufacturer：Zhejiang Flashforge 3D Technology Co., Ltd. Model: Adventurer 4 Pro Tester : Tang Guohao Approval : Chen Guoqiang Date : 2022 / 10 / 10 Antenna Test Report Contents: 1. Antenna Profile 2. Antenna Performance Test 3. Antenna Passive Test WiFi Antenna 1. Antenna Profile Agilent E5071B S Parameter Test // WiFi Antenna 2. Antenna Performance Test 3. Antenna Passive Test Z Y X Y X Z Passive Test For WiFi2.4G Freq (MHz) Effi (%) Effi (dB) Gain (dBi) 2400 52.0 -2.8 3.2 2410 50.7 -3.0 3.1 2420 49.0 -3.1 3.0 2430 46.6 -3.3 2.9 2440 44.7 -3.5 2.7 2450 46.8 -3.3 2.8 2460 47.2 -3.3 2.8 2470 49.3 -3.1 3.0 2480 48.9 -3.1 2.8 2490 49.8 -3.0 2.7 2500 53.0 -2.8 2.9 Radiation Pattern For WiFi2.4G Radiation Pattern For WiFi2.4G Radiation Pattern For WiFi2.4G

Page1of37FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCCTESTREPORT For ZhejiangFlashforge3DTechnologyCo.,Ltd. 3DPrinter TestModel:Adventurer4Pro AdditionalModelNo.:Adventurer4,Adventurer4Lite Preparedfor:ZhejiangFlashforge3DTechnologyCo.,Ltd. Address:No.518,XianyuanRoadJinhua,Zhejiang,China Preparedby:ShenzhenLCSComplianceTestingLaboratoryLtd. Address:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China Tel:(+86)755-82591330 Fax:(+86)755-82591332 Web:www.LCS-cert.com Mail:[email protected] Dateofreceiptoftestsample:April21,2023 Numberoftestedsamples:2 Samplenumber:A102822048-1,A102822048-2 Serialnumber:Prototype DateofTest:April21,2023~April25,2023 DateofReport:April26,2023 Page2of37FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCCTESTREPORT FCCCFR47PART15C(15.247) ReportReferenceNo......................:LCSA102822048EA DateofIssue.......................................:April26,2023 TestingLaboratoryName..............:ShenzhenLCSComplianceTestingLaboratoryLtd. Address................................................:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei, ShajingStreet,BaoanDistrict,Shenzhen,518000,China TestingLocation/Procedure............:FullapplicationofHarmonisedstandards■ PartialapplicationofHarmonisedstandards□ Otherstandardtestingmethod□ Applicant’sName.............................:ZhejiangFlashforge3DTechnologyCo.,Ltd. Address................................................:No.518,XianyuanRoadJinhua,Zhejiang,China TestSpecification Standard..............................................: FCCCFR47PART15C(15.247) TestReportFormNo......................:LCSEMC-1.0 TRFOriginator....................................:ShenzhenLCSComplianceTestingLaboratoryLtd. MasterTRF.........................................:Dated2011-03 ShenzhenLCSComplianceTestingLaboratoryLtd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenLCSComplianceTestingLaboratoryLtd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenLCSComplianceTestingLaboratoryLtd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. EUTDescription...............................:3DPrinter TradeMark..........................................: TestModel...........................................:Adventurer4Pro Ratings.................................................:Input:AC100-240V,50/60Hz,4.5AMax,350W Result..................................................:Positive Compiledby:Supervisedby:Approvedby: DiamondLu/AdministratorCaryLuo/TechniqueprincipalGavinLiang/Manager Page3of37FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCC--TESTREPORT EUT.........................................:3DPrinter TestModel...............................:Adventurer4Pro Applicant...............................:ZhejiangFlashforge3DTechnologyCo.,Ltd. Address..................................:No.518,XianyuanRoadJinhua,Zhejiang,China Telephone...............................:/ Fax..........................................:/ Manufacturer........................:ZhejiangFlashforge3DTechnologyCo.,Ltd. Address...................................:No.518,XianyuanRoadJinhua,Zhejiang,China Telephone...............................:/ Fax..........................................:/ Factory...................................:ZhejiangFlashforge3DTechnologyCo.,Ltd. Address...................................:No.518,XianyuanRoadJinhua,Zhejiang,China Telephone...............................:/ Fax..........................................:/ TestResultPositive Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. TestReportNo.:LCSA102822048EA April26,2023 Dateofissue Page4of37FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity RevisionHistory ReportVersionIssueDateRevisionContentRevisedBy 000 April26,2023 InitialIssue--- Page5of37FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TABLEOFCONTENTS 1.GENERALINFORMATION.....................................................................................................................................6 1.1.DESCRIPTIONOFDEVICE(EUT)........................................................................................................................6 1.2.HOSTSYSTEMCONFIGURATIONLISTANDDETAILS..........................................................................................7 1.3.EXTERNALI/OCABLE..........................................................................................................................................7 1.4.DESCRIPTIONOFTESTFACILITY........................…

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Page 1 of 55 FCCID:2AKLL-AD4PROReportNo.:LCSA102822048EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity AppendixA RFTestDatafor2.4GWIFI(ConductedMeasurement) ProductName:3DPrinter TestModel:Adventurer4Pro EnvironmentalConditions Temperature: 23.5C RelativeHumidity: 52.2% ATMPressure: 100.0kPa TestEngineer: JokerHu Supervisedby: LingZhu…

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