This CNC kit included:

*1x Digital Stepper Driver 1.8~5.6A 20-50VDC for Nema 23, 24, 34 Stepper Motor
* 1 x Nema 23 Bipolar 3Nm (425oz.in) 4.2A 57x57x114mm 4 Wires CNC Stepper Motor

Stepper Motor 23HS45-4204S:

* Manufacturer Part Number: 23HS45-4204S
* Motor Type: Bipolar Stepper
* Step Angle: 1.8 deg
* Holding Torque: 3Nm(425oz.in)
* Rated Current/phase: 4.2A
* Voltage: 3.78V
* Phase Resistance: 0.9ohms
* Inductance: 3.8mH ± 20%(1KHz)
* Frame Size: 57 x 57mm
* Body Length: 113mm
* Shaft Diameter: Φ10mm
* Shaft Length: 24mm
* Number of Leads: 4
* Lead Length: 400mm
* Weight: 1.8kg

Stepper Driver DM556T:

* Anti-Resonance for optimal torque, extra smooth motion, low motor heating and noise
* Motor auto-identification and parameter auto-configuration for optimal torque from wide-range motors
* Step and direction (PUL/DIR) control
* Multi-Stepping for smooth motor movement
* TTL compatible and optically isolated inputsto 5.6A
* Input voltage 20-50VDC
* 16 selectable micro-step resolutions of 400-25,600 via DIP switches
* 8 selectable output current settings of 1.8A to 5.6A via DIP switches
* Soft-start with no "jump" when powered on
* Pulse input frequency up to 200 KHz
* Automatic idle-current reduction
* Protections for over-voltage and over-current

Electrical Specifications:

* Output Peak Current: 1.8~5.6A (4.0 RMS)
* Input Voltage: +20~50VDC (Typical 24-48VDC)
* Logic Signal Current: 7~16mA (Typical 10mA)
* Pulse Input Frequency: 0~200kHz
* Pulse Width: 2.5μS
* Isolation Resistance: 500MΩ

* Weight: Approx.300g (10.6oz)