1. Length: 1m. 2. The USB cable with 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. 3. It can be used for Raspberry pi, as well as other similar application, like USB lamp, usb fan, etc. 4. Please notice that the data line are not connected through, so this cable can not be used for data transfer. 5. Applicable: LED lamps, DC power
