An extension cable especially for use with your usb 3.0 Devices. Usb 3.0 Delivers a leap forward in transfer speeds and capability, but also maintains a backward compatibility with usb 2.0 And usb 1.1 Devices Usb 3.0 Superspeed supports data transfer speeds of up to 5gbps General type :usb extension cable , technology shielded twisted pair (stp) Connectivity : connector(s)1 x 4 pin usb type a - male connector(s) (other side)1 x 4 pin usb type a - female, miscellaneous , compliant standards :usb 3.0 , Manufacturer warranty service & support :limited lifetime warranty, compatibility information : designed for all usb 3.0 Compatible devices laptop/desktoppc/mac/printer with usb 3.0 Connection 1 Year warranty.