Specification Brand : BIGTREETECH BulletPoint1 : MCU: Adopts 32-bit ARM Cortex-M7 series STM32H723ZET6 master chip with a main frequency of 550MHz BulletPoint2 : E-Fuse: Upgraded with eFuse protection, which responses faster with strong protection, effectively protecting the motherboard from being damaged caused by short circuits, over-current, etc. BulletPoint3 : EZ Drive: Use the 10-axis EZ drive socket to avoid finger pricking; SPI and UART operating modes driven by on-board TMC can be used only through firmware settings BulletPoint4 : CNC Fan: The CNC fan 24V, 12V and 5V voltage can be selected, which can save the operation of the customer's external transformer module and effectively reduce the damage probability of the main board BulletPoint5 : Expansion Interface: Reserve proximity switch interface, support NPN and PNP type selection, (24V, 12V, 5V) voltage optional; Reserved three-way four-wire fan interface can be used to connect water cooling device ChipsetType : STM32H723ZET6 Color : 4040 CompatibleDevices : Personal Computer ConnectorType : Coupling ExteriorFinish : Stainless Steel GraphicsCardInterface : pci_e IncludedComponents : print head for H2D Combo ItemName : BIGTREETECH Octopus Max EZ V1.0 Control Board 32Bit New Upgrade Octopus Pro Motherboard, Compatible EZ2209/EZ5160 Stepper Driver, Support Running Klipper Firmware for Voron 2.4 DIY Upgrade 3D Printer ItemPackageDimensions_Height : 21.0058 centimeters ItemPackageDimensions_Length : 5.1054 centimeters ItemPackageDimensions_Width : 14.3002 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : 3d-printer-controllers MainPowerConnectorType : 24-Pin Manufacturer : BIGTREETECH Material : Aluminum MemoryClockSpeed : 550 MHz MemorySlotsAvailable : 2 MemoryStorageCapacity : 32 MB ModelName : SKR 3 EZ ModelNumber : KINGPRINTER-1020000413 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPorts : 2 PartNumber : KINGPRINTER-1020000413 Platform : windows_xp ProductDescription : BIGTREETECH Octopus MAX EZ V1.0 Control Board ProductSiteLaunchDate : 2023-01-15T01:27:13.154Z Size : 0.2MM+0.4MM SpdifConnectorType : Optical Style : Octopus MAX EZ SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SystemBusStandardSupported : SATA 3 TotalUsbPorts : 2 UnspscCode : 43201513