Copystar SYS-500GB-4+USB-CST Dvd Duplicator 500 Gb Hard Drive Smart Plus Usb 3.0 To 4 Cd Dvd Burners Sata Tower Dvd duplicator built-in hard drive and smart ISO usb port 3.0 Is-usb enable the transfer of is image files from pc onto the duplicator's hard drive Support hard drive to 4 targets or 1 disc to 3 targets disc to disc duplication Supports all currently available dvd media including double/dual layer dvd9 Select-able cd and dvd burning speeds by easy and simple lcd menu