AiTrip A4988 Compatible StepStick Stepper Motor Diver Module with Heat Sink for 3D Printer Controller Ramps 1.4

Specifications: Size: A4988:20*15*11mm(LWH) Heat Sink: 9*9*5mm(LWH) Weight: 0.8ounces Color: Red Features: -Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay) -Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection -Automatic current decay mode detection / selection -Internal UVLO -Mixed with slow current decay modes -Synchronous rectification for low power dissipation -Crossover-current protection -Thermal shutdown circuitry -3.3 and 5 V compatible logic supply -Thermal shutdown circuitry -Ground Fault Circuit -Load short-circuit protection -Of five optional step mode: full, 1/2, 1/4, 1/8 and 1/16 Package Included: 5*A4988 StepStick Stepper Motor Diver Module 5*Heat Sink