UPGRADED CAPABILITIES: Add two RS232 DB9 connections to the PCIe slot of your server - INDUSTRY COMPLIANT: RS232 serial port is PCI Express 1.1 compliant ensuring reliability by reducing the load applied to the CPU - MAXIMUM COMPATIBILITY: Easily install the RS232 Serial Adapter Card with a compatible low-profile or full-profile bracket - OPTIMAL TECHNOLOGY: RS232 serial port provides high-speed data transfer rates of up-to 921.4Kbps and supports 256-byte depth FIFO per transmitter and receiver