- 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