Compared to the tmc2100 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. Support uart mode you can use uart mode in mks sgen l v1.0/mks gen l v2.0/mks , skr 1.3/1.4 by setting jumper cap. (No jumper is needed, no welding drive is required, and it is more convenient to use). This function does not support mks gen l v1.0 Tmc2208 single-axis drive chip, default current:1.25a ,max current:2.0a ,input voltage:4.75v-36v Step resolutions: 256 microsteps/step resolution. Flexible -plyer interpolation unit, also limited in pulse rate system can still be perfect to achieve sinusoidal control. With patented technology spread high chopper frequency, dcstep, stall guard2 stall detection technology, cool step dynamic adjustment technology, can save 70% energy, stealth chop mute technology. color:White Material:pcb size:6.34 x 4.96 x 1.1inches Package Contents: 5 x TMC2208 v2.0 driver module 5 x black radiators 1 x screwdriver (random, cannot the specified style) 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.