"2-PORT PCIE SERIAL CARD: DIP switches allow each DB9 serial port to operate independently, therefore enabling the connection of RS-232, RS-422 and RS-485 devices.
LED indicators indicate the status of data transfer and receptionADJUSTABLE POWER SUPPLY: The dual-port PCI Express serial adapter card has an adjustable power supply of 12 V (1.5 A per port), 5 V (1.5 A per port) or 0 V (RI) using pin 9 via SATA.
The power supply for each port can be individually adjusted using jumpersSTANDARD AND LOW PROFILE BRACKETS: The TAA-compliant serial card is equipped with two standard profile brackets (pre-installed) and contains two low-profile brackets for compatibility with small form factor desktops/serversSPECIFICATIONS: ASIX AX99100 chipset.
16C450 & 16C550 UART compatible.
2x 9-pin D-Sub ports.
Maximum baud rate 921.6 Kbps per port.
256-byte FIFO.
COM retention.
Windows and Linux compatible.
Odd/Even/Mark/Space/None parity modes.
5/6/7/8/9 data bits.
PCIe 2.0 x1"