V2.0 Version, Ultra quiet,Large heat sink,good heat dissipation Support uart mode by set jumper caps instead of welding on gen_l V2.0,skr1.3/1.4, sgen_l. Pay attention to the connection direction,do not reverse it. The motor direction is opposite to that of A4988 and DRV8825, please adjust the firmware or adjust the motor wiring if you want to change A4988. Dir/step mode used in the printer control board, please pay attention to set the jumper cap MS1 MS2. Compared to the TMC2100 stepper motor driver module, TMC2208 driver module is with lower heat. The heat of TMC2208 in 0.8A with the equivalent effect of the TMC2100 heat in 0.5A , can be used interchangeably with the TMC2100. Colour: as shown Material: Metal Size: 12 x 12 x 8cm Package Contents: 5 x Stepper Motor Driver Only the above package content, other products are not included. Note: Light 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.