This CNC kit included:

1 x 23HS45-4204S1: Nema 23 Bipolar 3Nm(425oz.in) 8mm Diameter 4.2A 57x57x113mm 4 Wires Stepper Motor
1 x DM556TE: TE Series Digital Stepper Driver 1.8-5.6A 24-50VDC for Nema 23, 24, 34 Motor

Motor Specification

*Manufacturer Part Number: 23HS45-4204S1
*Motor Type: Bipolar Stepper
*Step Angle: 1.8deg
*Holding Torque: 3.0Nm(425oz.in)
*Rated Current/phase: 4.2A
*Phase Resistance: 0.88ohms
*Inductance: 3.4mH±20%(1KHz)
*Insulation Class: B 130°C[266°F]
*Frame Size: 57 x 57mm
*Body Length: 113mm
*Shaft Diameter: Φ8mm
*Shaft Length: 24mm
*D-cut Length: 20mm
*Number of Leads: 4
*Lead Length: 400mm
*Weight: 1.668kg

Connection

A+: Black, A-: Green, B+: Red, B-: Blue

Driver Specification

*Output Peak Current: 1.8~5.6A(1.3~4.0RMS)
*Input Voltage: +24~50VDC
*Logic Input Voltage: 5~24VDC
*Logic Input Current: 7~20mA
*Pulse Input Frequency: 0~200kHz
*Pulse Width: 2.5μS
*Isolation Resistance: 500MΩ