Update Vs F446 Version:STM32H723VGT6, 550Mhz. Moter Power input , 60V (Remove one MOSFET output),voltage selector on every Driver,120uF/63V Capacitor For Motor Driver DotStar RGB Support,USB-A 5V Power Supply More :https://github.com//-SPIDER Pin out: https://ae01.alicdn.com/kf/S2bf64540d8a54727bb6e74f506329f1d2.jpg Thermal model:https://.thingiverse.com/thing:6097676 V3.0 Upgraded 1.Added 74HCT365 buffers for all stepper motor drive signals. All the motor drive IO signal voltages are changed from 3.3V to 5V, the driving ability is enhanced, and the external driver connettion is simpler. 2.An onboard CAN transceiver is added to enable the mainboard to communicate directly with CAN devices, no need for expansion boards. 3.A 3.3V power supply indicator is added, and different power supplies are indicated by LEDs of different colors, so that the working status of each power supply on the motherboard can be seen at a glance. 4.The main board has been re-layouted, and all the marks are placed on the top layer, which makes it easier for users to view the marks of the pins and easier for firmware configuration. 5.Connect the BOOT0 and RESET pins of the STM32 to the Pi's IO through the switch (disconnected by default), which provides the basis for directly entering the programming mode through the Pi. Colour:Black Material:PCB+Electronic component Package Contents: 1 x 3D Printer MotherBoard 1 set x accessories (accessory colors are random,don't accept the specified color) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.