100% brand new and high qualityType: StepMotor driverColor: PurpleSize: As shownMaterial: PCBFunction:1. Simple step and directional control interface.2. Can interface directly with 3.3 V and 5 V systems.3. Over -temperature Thermal shutdown, overcurrent closure and undervoltage barrier.4. Short-circuit-to-earth and short-circuited load protection.5. 4-layer, 2 OZ Copper PCB for improved heat drainage.6. Exposed ground cushion that can solder, under the driver-ic 39; one on the bottom of the PCB-six different step solutions: full step, half step, 1/4-step, 1/8-step, 1/16-step, and 1/32 steps.7. Adjustable power control lets you set the maximum power output with a potentiometer that allows you to use tension over your steppe engine nominal voltage to achieve higher step speeds.8. Intelligent chopping check that automatically selects the correct current decay state (rapid decay or slow decay).9. 45 V Maximum supply voltage.10. Built -in regulator (no external logical voltage supply needed).11. Module size, pinout and interface are suitable for A4988 Step Motors.The package contains: 2 pieces DRV8825 StepMotor DriverNotice:1.1 cm = 10 mm = 0.39 inches.2. Please allow 1-2 mm error due to manual measurement and make sure you dont mind before ordering.3. Please understand that colors may exist chromatic aberration as the different location of images.