1. Support FOC vector control, torque, speed and position three-loop control. Support serial port direct control, read position and status, and set system parameters. 2. It supports setting system parameters with one key on the screen and saves it automatically, which can completely the host computer. 3. Power-on self-test, automatic identification of some parameters, automatic judgment of some error conditions and prompts. 8 high-quality MoS tubes are used to form a double H-bridge drive, which makes the motor control more . 4. Adopt on-board industrial-grade high-precision 16384 line magnetic encoder, so that each step can be accurately positioned. 5. Support 1-256 arbitrary subdivisions, and odd subdivisions (such as 11 subdivisions) are also available. Support 42 stepper motors with any length of 0.9 and 1.8. The maximum printing speed can reach 150-180mm/s Motherboard parameters: Motherboard model: MKS SERVO42C V1.0 Microprocessor: High-performance 32-bit ARM processor Drive: 8 MOS tubes form a double H bridge drive Input voltage: 7V-28V Sensor: Industrial-grade high-precision 16384 line magnetic encoder Working current: 0-3000mA Subdivision support: 1256 arbitrary subdivisions Closed-loop feedback frequency: torque loop 20KHz, speed loop 10KHz, position loop 10KHz Maximum speed: about 150-180mm/s for 3D printing, about 145-162 words/min for writing machines Control accuracy: higher than 0.08 degrees PCB size: 39 x 39 x 1.6mm Material: ABS+Metal colour: black Package Contents: 1 x MKS SERVO42C (including 42 stepper motors) 1 x Motherboard adapter board 1 x Motherboard cable 1 x PCBA to motor cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.