Features: Not only for power supply or Charge,But also for data transmission. The USB cable with ON OFF switch. With this, the days are gone that you have to plug and unplug the USB cable, just a slight press; the operation will start/end. It can be used on Raspberry pi, as well as other similar application, like USB lamp, usb fan, LED Desk Lamp smartphone USB charger and more USB Extension: Standard USB A male to A female connectors, conect your PC, laptop, charger with your USB LED Lamp or USB Fan. Suitable for USB LED Lamp, USB fan and other USB devices,for Driving Recorder,USB Keyboard,Flash Drive, Hard Drive,USB Charger and more. Specifications: Item Type: USB 2.0 extension line Material: Plastic Color: White Cable length: (Apporx.) 100cm/39.3inch Maximum allowed current: 2 Amps. Quantity: 1 PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 X USB 2.0 Extension Cable With ON OFF Switch (No retail package)