USB Adaptor option for Copystars Duplicator External USB bridge board for duplicator set the first CD/DVD target drive as an external CD/DVD burner for your computer. USB connection can be enabled and disabled by the switch located on the back of the card. A USB (A to B cable) is required to establish the connection between the computer and the device. USB 2.0 Specifications: Provide 2 channel sata connector , can break into the orignal CD-DUPLICATOR. By External switcher select the CD-DUPLICATOR or PLAYER IDE Bus working in Orignal mode or in USB2.0 mode. When switch to USB mode , the connected Device just become a protable device. Can be controlled by Any PC with USB Host. Very easy to upgrade your product become USB protable device.