Keyestudio 4DOF Manual page 6

3
The parameters of keyestudio servo motor/ drive shield are
as follows:
 VIN voltage: VIN = DC 7-15V
 VIN current: 5A
 Two-channl 5V output: 5V/3A
 PS2 interface: compatible with Sony PS2 receiver, can be
plugged directly into the expansion board.
 Dimensions: 73*53.34mm