Yeworth 2 Pack 0.2m USB 2.0 to DC 2.5mm Power Cable USB Charger Charging Cable for Mp3, Mp4, Chinese Tablet Pcs and All 7" / 8" / 9" / 10" Android Tablets with 2.5mm DC Jack Contents: 2 x USB to 2.5mm diameter charging cable. Length: 0.2m. Fit your USB port with this cable so you can power small devices and electronics that use a DC 2.5mm jack. Cable uses the 5V DC from the USB port. Only compatible with tablets which use a 2.5x0.8mm round connector and charge at 5V / 2A or less. Premium Yeworth cable engineered with molded strain relief connectors for durability and grip treads for easy plugging and unplugging. Tablet does not permit data transfer through usb charging cable.