1 Pc 12-24V 2A micro stepper motor controller control board subdivision 1-32 Description: Brand new and high quality. Low noise, low vibration, low heat and extremely smooth. Security: 1 andgt Protection against tearing of supply and control cables during operation 2 andgt Short circuit protection of stepper motor interface A and A-, B and B-process operation 3andgt stepper motor interface A and B, A and B-, A-i B, A-i B-, short circuit protection during operation 4 andgt Protection against disconnection of the engine cable during engine operation 5 andgt During engine operation, the motor wires are connected to the protection (assuming only three wires are connected, they will also work one, but with noise). 6 andgt Driver power input protection 0-2A Driver split: 1,2,4,8,16,32 Specification: Material: Metal and Size: approx. 42x43x16mm or 1,65x1,69x0,63 inch The package includes: 1 piece control board 1 piece of wire 2 pieces long screw Note: