1PCS Great IT 24V/12V To 5V/5A 25W DC DC Buck Step Down Power Supply Module Synchronous Rectification Power Converter
1. In : Input positive                           
2. Out : Output positive
3. GND: IN-/OUT-                                 
4. Dimensions:45*31*16mm(length*width*height)
5. Input voltage: 9-35V(Maximum limit voltage is 35 v, please leave some leeway to use ,otherwise be damaged)  
6. Output voltage: 5V                                  
7. Output current: 5A
8. Output power: 25w
32934802533 - greatit