Add two high performance RS232 serial ports (DB9) to your low or full-profile computer, through a PCI Express slot. Highlights: - Dual-channel 16C1050 UART for full compatibility with 16C1050 devices - Maximum data transfer rate of 460 Kb/s - Compliant with PCI Express 1.0a specification, compatible with 1x, 2x, 4x, 8x, and 16x PCIe bus - 256-byte FIFO per transmitter and receiver - In-band software flow control using programmable Xon/Xoff in both directions - Out-of-band hardware flow control using RTS / CTS - Support for 5,6,7 or 8 data bits - Standard profile bracket installed, optional dual low-profile brackets included