ITEM NAME:High Quality 10 Pcs Aluminum Heat Sink for StepStick A4988 3C Description This Aluminium Heatsink is specially designed for pololu A4983/A4988 StepStick stepper drivers. The function of heat sink is to cool down the board and make it operate better.  ·  Product Name: Aluminum Heat Sink  ·.Stepper drivers. The function of heat sink is to cool down the board and make it operate. 10 Aluminum Heat Sink.  · Colour: As the picture shows.  · Materal: Aluminum.
