Brand Name: BIGTREETECHModel Number: SKR V1.3Product Name: BIGTREETECH SKR V1.3Material: 4-layer PCBMicroprocessor: ARM cortex-M3 CPUInput Voltage: DC12V-DC24V, 5A-15AAppearance Size: 110*85mmMounting Size: 102*76mmSupport Display: TFT3.5, TFT2.8, 2004LCD, 12864LCDSupport Driver: TMC2208/TMC2130/TMC2100/ST820/A4988/DRV8825/LV8729Driver Working Mode: STEP/DIR, TMC2208-UART, TMC2130-SPITemperature Sensor Interface: TH0, TH1, TB, 3 channel 100K NTC (thermal resistance)Support File Format: G-codeSupport Machine Type: XYZ, Delta, Kossel, Ultimaker, CorexyUse for: 3D PrinterPlace of Origin: Guangdong, China (Mainland)Certificate: CEPin Process: ENIG (Electroless Nickel/Immersion Gold) Data:https://github.com/bigtreetech/BIGTREETECH-SKR-V1.3 SKR V1.3 instruction, please refer to this link: https://www.dropbox.com/s/x3cgq7tqbhk2yfd/SKR%20V1.3-Instructions.pdf?dl=0 Only Marlin firmware can demonstrate the full functionality of SKR V1.3.https://github.com/bigtreetech/BIGTREETECH-SKR-V1.3/tree/master/firmware/smoothieware%2BTFT35