1.Connects any USB 3.0/2.0/1.x cable with the full-sized Type A male connector to another USB cable. Extend the length of an existing cable or connect to an installed cable located in the back of a computer.Connector 1:USB 3.0 A female Connector 2:USB 3.0 A female

2.Support plug and play.USB 3.0 keystone connect two USB 3.0 or USB 2.0 cables with USB Type A male ends; USB keystone fits a standard opening in a patch panel or wall plate for keystone jacks.

3.Compatible with USB3.0,2.0 ,1.1 Compatible nearly all quickport style wall plates

4.High Speed transmission speed.With USB interface devices, such as PC, Mac, desktop, notebook, media players, USB external hard drive, AV receivers and other equipment, and through the wall to hide the cables behind the wall.

5.For use with wall plates.Distance between holes:22mm.Size:20mm x 10mm x 24mm