This micro-USB power cable is designed to meet power requirements of Raspberry Pi Zero, Raspberry Pi 1 Model A+/B+, Raspberry Pi 2 Model B, Arduino Yun, Arrow SmartEverything, Banana Pi, Bare Conductive Touch Board, RedBear Blend, Espruino, Flora, Gemma, Particle Electron/Photon, Snickerdoodle, and Trinket 3.3V & 5V. It has built-in power on & off switch and can also be used as USB high speed data sync & fast charger cable for smartphones and tablets with Micro-USB port. There is 8-Inches of cable between Micro-USB and on/off switch. CE and RoHS certified. (Connector: Micro-USB Male to Male; Color: Black; Length: 5ft)