ITEM NAME:2 Port RS-232 Serial Port COM to PCI-E PCI Express and 1xParallel Port Card Description: Complies with PCI - Express 1.0 a standard PCI-Express's 2.5Gb / s full-duplex speed supports Plug and Play Serial interface RS232 Compatible with 16c550 UART standard and 256 bytes transmit / receive FIFO High-speed data transfer rates up to 250k / s Hardware flow control with RS-232 Data Length: 5,6,7,8 Support for MODEM modem signal , DSR, RI, DCD, DTR, RTS, RS232 level conversion 1 parallel port transfer rate up to 1.5Mbyte / sec High-speed data transfer rates up to 1.5 MBMbyte / sec Specification: Support for : Windows98 / 98SE / ME / 2000 / xp / server 2003 / xp 64bit / Vista / win7 / 2008, Linux, MAC Device Requirements: One PCI-Expresscard slot Package Includes: 1 Piece PCI-Express Card.1 parallel port transfer rate up to 1.5Mbyte / sec. Serial interface RS232. Support for MODEM modem signal, DSR, RI, DCD, DTR, RTS, RS232 level conversion.