Tekit Dual RS-232 RS232 DB9 9 Pin Serial Port to PCI I/O Controller Card Adapter with 16C550 UART Compatibility: Dual RS232 DB9 9-Pin Serial Port to PCI I/O Controller Card Adapter with 16C550 UART Specifications: Dual RS232 DB9 9-Pin Serial Port to PCI I/O Controller Card Adapter with 16C550 UART Package Contents: Dual RS232 DB9 9-Pin Serial Port to PCI I/O Controller Card Adapter with 16C550 UART