StarTech.com 2-Port PCI Express Serial Card, Dual Port PCIe to RS232 (DB9) Serial Card, 16C1050 UART, COM Retention, Windows & Linux - Connect serial RS232 (DB9) devices, 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: