Features Good Performance: This 42 closed loop motor driver adopts magnetic field directional control, with low noise, low vibration and low heat generation. 4 Half Bridge Drives: This 42 closed loop motor driver utilizes four half bridge drives with 8 MOSFETs for high efficiency. 14 Bit Magnetic: This 42 closed loop motor driver has 14 bit magnetic with very high resolution, making the driver very sensitive. High Speed: This 42 closed loop motor driver has a high speed of 1000RPM, and when installed in a printer, the print speed can reach 150 to 180mm/s. Easy Installation: This 42 closed loop motor drive is very easy to install and wire, you just need to connect the wiring to the appropriate device. Specification: Item Type: Servo42C PCBA Motor Driver Kit Material: PCB Type: for MKS SERVO42C V1.0 Microprocessor: for Crotex-M0+ Motor Driver: 4 Half Bridge Drivers with 8 MOSFETs Input: 7V-28V Adjustable Current: 0-3000mA Subdivision: 1-256 ( Default 16) Maximum Speed: 1000RPM Resolution: 0.08 Degree Update Frequency: Position: 10Khz, Torsion: 20Khz Package List:1 x Motherboard1 x Driver2 x Connection Cable1 x Hex Wrench4 x Screw4 x Isolation Post1 x Radial Magnet Package List 1 x Motherboard 1 x Driver 2 x Connection Cable 1 x Hex Wrench 4 x Screw 4 x Isolation Post 1 x Radial Magnet