The HB3 works with power supply voltages from 2.5V to 5V, but is normally operated at 3.3V as this is the supply voltage on most Digilent system boards. 

The HB3 is designed to work with either Digilent programmable logic system boards or embedded control system boards. Most Digilent system boards, such as the Nexys, Basys, or Cerebot, have 6-pin connectors that allow the HB3 to plug directly into the system board or to connect via a Digilent 6-pin cable.

features

• 2A H-bridge circuit for voltages up to 12V
• Two 2-pin screw terminal blocks for connection to motor
• Small size (0.8" x 1.20")
• Ships with a 6" 6-pin cable and a 6-pin header

connectors

6-pin header and two 2-pin screw terminal blocks for connection to motor