Description High precision by 128micro-step. Can be used for CNC, 3D printer driver. For some of NEMA23, and for most of NEMA17. Max current Ipeak 1.5A, default is 0.8A Working voltage: 6V—36V，recommanded to use 12V Micro-step: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128 Great noiseless effor on 1/64 and 1/128 micro-step setup. 4 layer PCB board, chip back up, plus heat sink, better heat dissipation. Package includes the heat sink, each purchse is for one module only. Please read instruction and notice point here before to use.
