The CDLSB-903 is a USB - IEEE 1284 converter creating a parallel port on a PC while being connected via USB. Installation is easy as no drivers are required for Windows XP and above. USB A plug to 36 Centronics male USB 1.1 Compliant, compatible with USB 2.0 1 Mtr in length Compatible with Windows XP, Vista ; Windows 7(32 ; 64bit)