ITEM NAME:2PCS 5V 200rpm DC Driver for BBC Micro:bit Starter Electronics Supplies Description: Material: Plastic Rated Voltage: DC 5V Unloaded Speed: 200rpm ±Ã¯ ¼Å¡10% Support for transfer between positive pole and negative pole This driver motor is for BBC Micro:bit programming DIY learning kits Fit for robotics DIY kits Cable Length: Approx 19cm Motor Size (L x W x H): Approx 7 x 2 x 2cm/7.48 x 0.79 x 0.79inch Package Includes: 2 Motors SKU: FUZ0025178957028529.Unloaded Speed: 200rpm ±Ã¯ ¼Å¡10%. This driver motor is for BBC Micro:bit programming DIY learning kits. Support for transfer between positive pole and negative pole. Fit for robotics DIY kits.