Features: new and high quality for charge,and transfer data,Type C Extension cable with on / off for your convenience,need to use your own USB to Type C cable. No need to pull the cable to restart or reboot your devices, just press the button to turn on and off.Helps prevent the USB connector from wear and tear due to frequent pulling and inserting the usb cable. USB-C Type-C USB for Power Switch for 4 Model B. Suitable for An-droid smart phones or tablet PC powerbank and more Type C port devices.Not only can be used for your Pi, but also for any Type C devices just like An-droid cellphone or tablets. Application: USB power output, LED light bar, USB small desk lamp / fan, LED small table lamp and other computer peripheral small power electrical power supply. Specifications: Item: type c male+switch+type c female Wire: 2-core 18x0.10 copper wire+2-core 10x0.10 copper wire OD: 3.8MM bare copper Length: 20cm Package Includes: 1PC x Power Switch Cable for 4 power supply Note: Only suitable for connecting USB to Type C male cable,does not support Type C to Type C male cable!!! 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.