StarTech.com Serial Adapter PEX8S1050LP - PCIe

Add eight RS232 DB9 serial ports to your desktop computer, through two PCIe expansion card slots. This PCI express serial card, with two breakout cables, provides you with multiple ports to connect a wide variety of serial peripherals, at speeds of up to 921.4Kbps.
Connect your Peripherals with 8 Serial Ports
The PCI express serial port card makes it easy to add serial ports to connect your peripherals including printers, scanners, credit/debit card readers, PIN pads and modems, industrial controls and more. The 8 port PCIe serial card includes 2 breakout cables - each with 4 DB9 connectors. It also features a UART 16550.
Versatile Use
The low profile PCI E serial card is the ideal choice for adding serial ports, even when space is at a premium. The DB9 serial card is designed to fit into small form factor and standard computer cases. The card comes pre-configured with a LP bracket, and includes two optional full-profile brackets, so installation is easy regardless of the case form factor.
Windows Only
This PCI Express card is only compatible with Windows.