Fully Plug and Play Compatible  Compliant with USB 2.0 Full-Speed (12Mbps) Specification  Compliant with USB Device Class Definition for Printing Devices Version 1.0  Compliant with IEEE1284-1994 Specification for Bi-Directional Parallel Peripheral Interface  Truly Bi-Directional Communication Between PC and Printer  Works With Any IEEE1284 Compliant Printers, Scanners and Other IEEE1284 Compliant Peripherals  Connect Directly to Centronics (36-Pin) Port  Support Bus-Powered Mode, No External Power Source Required  No Driver is Needed for MS Windows 2000 / XP / Server 2003 / Vista. Driver is Only Required for MS Windows 98 / 98SE / Me