This CNC kit included: 1 x DM542Y: Y Series Digital Stepper Driver 1.0-4.2A DC20V-50V for Nema 17, 23, 24 Stepper Motor 1 x 23HS30-2804S2: Nema 23 Bipolar 1.9Nm(269.06oz.in) 2.8A 57x57x76mm 4 Wires φ8mm Shaft This CNC kit included:

1 x DM542Y: Y Series Digital Stepper Driver 1.0-4.2A DC20V-50V for Nema 17, 23, 24 Stepper Motor
1 x 23HS30-2804S2: Nema 23 Bipolar 1.9Nm(269.06oz.in) 2.8A 57x57x76mm 4 Wires φ8mm Shaft

Motor Specification

Manufacturer Part Number: 23HS30-2804S2
Motor Type: Bipolar Stepper
Step Angle: 1.8°
Holding Torque: 1.9Nm(269.06oz.in)
Rated Current/phase: 2.8A
Phase Resistance: 1.13ohms
Inductance: 4.8mH±20%(1KHz)
Insulation Class: B 130°C[266°F]
Frame Size: 57 x 57mm
Body Length: 76mm
Shaft Diameter: φ8mm
Shaft Length: 22mm
D-cut Length: 18mm
Number of Leads: 4
Cable Length: 500mm
Driver Specification

Output Peak Current: 1.0 - 4.2A(0.71~3.0RMS)
Input Voltage: DC20V~50V
Logic Signal Current: 7 - 15mA(Typical 10mA)
Pulse Input Frequency: 0 - 200kHz
Pulse Width: 2.5μS
Isolation Resistance: 500MΩ
Connection

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