ITEM NAME:10pcs Stepper Motor Driver Heat Sinks Cooling Block for TMC2100/8825 #gib Store Home Promotion Hot Item Add to Fav.10pcs 3D Printer Parts Stepper Motor Driver Heat Sinks Cooling Block Heatsink for TMC2100/8825. Compatible model: for TMC2100/8825 Stepper Motor Driver Heat Sinks. 10 x Stepper Motor Driver Heat Sinks.