1. The motor driver board specially tailored for :bit can drive two-way DC motors and three-way steering gear, which is a good for your DIY smart car. 2. On-board for :bit interface, which can be directly inserted for use 3. Onboard two-way DC motor interface, three-way steering gear interface 4. The onboard 5V voltage regulator chip can output up to 3A current, which can be connected to the battery for power supply through the VIN terminal 5. Various onboard DC motor interfaces, as as standard steering gear interfaces, are convenient for connecting specifications of DC motors and steering gears Supply voltage: 6V~12V (VIN terminal) Servo voltage: 5V voltage: 3.3V Driver chip: TB6612FNG Product size: 65 x 36mm Via diameter: 3.0mm color:Blue :PCB Package Contents: 1 x motor driver board for :bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.