Witbot DRV8825 Stepper Motor Driver Module 4-Layer with Mini Heat Sink for 3D Printer RP1.4 A4988(Pack of 5pcs)

Specification: 1)*Suitable for driving below 8.2V ~ 45V 2.5A stepper motor 2)*Six different stepping resolutions: full, half, 1 / 4,1 / 8,1 / 16,1 / 32. 3)*A simple steps and direction control interface. 4)*Adjustable potentiometer can adjust the maximum output current, resulting in higher step rate. 5)*Automatic current decay mode detection / selection. 6)*Thermal shutdown circuit, undervoltage lockout, crossover current protection. 7)*Ground short-circuit protection and load short-circuit protection. 8)*DRV8825:20*15*11mm/approx 0.79*0.59*0.43inch(L-W-H) . 9)*Heat Sink: 9*9*5mm/approx 0.35*0.35*0.2inch(L-W-H). 10)*Net weight: 4g/approx 0.008oz./pcs. Package Included: 5xDRV8825 Stepper Motor Driver Module 5xMini Heat Sink