This CNC kit included:

1 x Closed Loop Stepper Driver 0-8.0A 24-48VDC for Nema 17, 23, 24 Stepper Motor CL57T V41
1 x Nema 23 Closed Loop Stepper Motor 3.0 Nm/424.83oz.in Encoder 1000CPR

1 x 1.7m Long Encoder Extension Cable for Closed Loop Stepper Driver
1 x RV-4 AWG20 1.7m Long Motor Extension Cable with GX16 Aviation Plug
1 x RS232 Debugging Cable
1x driver CL57T User Manual

Motor Specification:

Part Number: 23HS45-4204D-E1000

Number of phase: 2
Holding Torque: 3.0 Nm(424.83oz.in)
Rated Current/phase: 4.2 A
Phase Resistance: 0.82ohms
Inductance: 3.6mH ± 20%(1KHz)
Frame Size: 57 x 57mm
Body Length (Without Encoder): 113mm

Full Length (With Encoder): 138mm
Shaft Diameter: 8mm
Shaft Length: 21mm
D-CUT Shaft Length: 15mm
Lead Length: 300mm

Encoder Specification:

Output Circuit Type: Differential type
Encoder Type: Incremental
Encoder Resolution: 1000PPR(4000CPR)
Output Signal Channels: 2 channels
Supply Voltage Min: 4V
Supply Voltage Max: 5V
Output Current: 100mA
Output High Voltage: 5V
Output Low Voltage: 4.5V
Output Frequency Max: 60kHZ

PLEASE NOTE: The thick black wire can be used for shielding, but it is not required, so you can leave it unconnected.