StarTech.com PCI Express Serial Card, PCIe to RS232 (DB9) Serial Interface Card, 16C1050 UART, COM Retention, Low Profile, Windows & Linux - Connect a serial RS232 (DB9) device using this PC Serial Card. Supports 16C1050 UART. LED lights to monitor activity on the PCI express DB9 card - The UART PCIe card supplies 5/12V over pin 9. Continue using legacy hardware with this RS232 PCIe card: