Features: USB specification 1.1 & 2.0 compliant Support RS232 serial interface (DB25 or DB9) Support over 1 Mbps data transfer rate Support remote wake-up and power managment Support Windows98 / Win 7 / Win 8 / SE / ME / 2000 / XP Specification: USB 2.0 to RS232 cable (male 9 pin) Cable Length: (Approx) 94cm / 37 inch Printer Plug Adapter: DB9 female to DB25 male Easy to use Package Includes: 1x USB to RS232 (DB9 male) cable adapter 1x DB9 female to DB25 male adapter 1x Driver CD