Specification AgeRangeDescription : Adult Brand : Skouphy BulletPoint1 : Upgraded V4.2.7 silent board has been updated from 8 bit to 32 bit. PLEASE NOTE: It only preinstalls the Ender-3 Pro firmware, if you want to install it in your Ender 3 or Ender-5,Ender 3 V2 need to flash the Ender 3 / Ender-5/ Ender 3 V2 firmware.If you need the firmware, please move to official website and download or contact us freely. BulletPoint2 : Driver: TMC2225 driver. Marlin 2.0.1 and bootloader installed. You can copy the firmware file to a formated SD card with no other files in it. Turn off the printer and unplug the power cord. Insert the SD card & power cord, and turn on the printer. Wait 10s to complete the firmware updating process. BulletPoint3 : Easy to Operate: With USB Port,can be Worked With E/Z/Y/X Axis Motor. BulletPoint4 : Thermal runaway protection is enabled. The Board is Optimized by Circuit, effectively solve the Heating Problem. BulletPoint5 : Please note this silent mainboard preinstalls the Ender-3 firmware, if you wanna install it in your Ender-5Ender 3 Pro, move to the Creality official website and download the firmware. Color : Black CompatibleDevices : Printer CoolingMethod : Air ExternallyAssignedProductIdentifier : 00850037165230 ExternallyAssignedProductIdentifier1 : 0738635281678 ExternallyAssignedProductIdentifier2 : 738635281678 FinishType : Powder Coated GpsrSafetyAttestation : 1 IndoorOutdoorUsage : outdoor ItemForm : Strip ItemName : Creality Ender 3 Silent Mainboard V4.2.7 with TMC2225 Driver Marlin 2.0.1 for Ender 3/Ender 3 Pro/Ender 3 V2/Ender 5 ItemPackageDimensions_Height : 16.2052 centimeters ItemPackageDimensions_Length : 5.8928 centimeters ItemPackageDimensions_Width : 14.3002 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : 3d-printer-accessories Manufacturer : Skophy Material : Plastic MaximumRotationalSpeed : 7000 rpm ModelNumber : Ender 3 Silent Mainboard V4.2.7 NoiseLevel : 30 decibels NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : Ender 3 Silent Mainboard V4.2.7 Pattern : Solid PowerConnectorType : 2-Pin PowerSourceType : Manual ProductDescription : Creality new upgrade silentboard compatible with Ender 3/ Ender 3 Pro/Ender 3 V2/Ender 5 (Customized and Non-Standard Matching) .This mainboard pre-install the Ender 3 firmware. ProductSiteLaunchDate : 2020-09-10T02:50:39.019Z Reusability : Single Use Size : 300X1X1CM Style : Modern SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Plastic Theme : City UnitCount : 1 UnspscCode : 40100000 Voltage : 24 volts Wattage : 2.4 watts