PCI Express card 4x COM

Controller type: RS-232 Serial Port | Interface: PCIe | Ports: 4 x RS-232 Serial Port | System Requirements: Windows10(32/64), 8 / 8.1 (32/64), 7 (32/64), Vista(32/64), XP(32/64), 2000 Windows Server 2012, 2008 R2, 2003(32/64) Mac OS 10.9 or lower (based on intel) Linux 2.4.x and later | Accessories included: 4 x Low profile bracket included | Other features: Supports RS232, RS485 & RS422 modes (For RS485 and RS422, external adapter required) Bi-directional speeds from 50 bps to 16 Mbps/Port Full Serial modem control Supports Hardware, Software flow control 5, 6, 7, 8 and 9-bit Serial format support Even, Odd, None, space & Mark parity supported Custom BAUD Rates supported with external clock or by programming internal PLL On Chip 256 Byte 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