Even, Odd, None, space & Mark parity supported Custom BAUD Rates supported with external clock or by programming internal PLL On Chip 256 depth FIFOs in Transmit, Receive path of each Serial Port Supports remote wake up and power management features Serial Port transceiver shutdown support Supports Slow IrDA on all Serial Ports IEEE1284 Chipset :ASIX/AX99100 Port number :4*Serial Port Interface:PCI Express 1x slot 10(32/64), 8 / 8.1 (32/64), 7 (32/64), Vista(32/64), XP(32/64), 2000 Support OS Server 2012, 2008 R2, 2003(32/64) OS 10.x ( based, tested up to 10.9) Linux 2.4.x and later (Tested up to 3.5) Operating Temperature: 0 Celsius-50 Celsius Environment Relative Humidity: 10%-90%(non-condensing) Storage Temperature: -0Celsius-80Celsius Relative Humidity: 5%-90%(non-condensing) Supports RS232, RS485 & RS422 modes Bi-directional speeds from 50 to 16 Mbps/Port Full Serial modem control Supports Hardware, Software flow control 5, 6, 7, 8 and 9-bit Serial format support Colour:black Material:PCB Size:65.3 x 58.2 x 16mm Package Contents: 1 x Expansion Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.