Position/speed/torque closed-loop, it can run at high speed without losing step.Field-Oriented control, low noise, low vibration and low calorific.4 Half bridge driver with 8 MOSFET, high operating efficiency.14 Bit magnetic encoder, high angle resolution.Support 1-256 subdivision,odd subdivision is also avaible.(Such as 11 subdivision)Material: plasticColor as shownMaximum speed 1000RPM.Support motors with 0.9 degree or 1.8 degree .The maximum printing speed can reach 150-180mm/s and easy to install and wire.With USART interface, you can connect the computer by serial port, for parameter adjustment and query.Specification: Board Type: MKS SERVO42C V1.0Microprocessor: Crotex-M0+Input Voltage: 7V-28VEncoder: 14 Bit Magnetic EncoderAdjustable Current Range: 0-3000mASubdivision:1-256(Default 16)Maximum Speed: 1000RPMAngle Resolution: 0.08 degreeThe Frequency of Update: Position 10Khz / Velocity 10Khz/ Torque 20KhzPCBA Size: 39x35.8mm /1.54x1.41inPackage Contents:1 x Stepper Motor SetOnly the above package content, other products are not included.Note: Light reflection 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.