StarTech.com 2 Port ISA RS232 Serial Adapter Card with 16550 UART Built-in jumpers allow easy configuration to any free IRQ Data transfer rates of up to 460.8 Kbits/sec. for peak serial device performance Easy to install and use with full step-by-step instructions Supports COM1-COM7 and IRQ 3,4,5,9,10,11,12,15 settings for each port Full jumper set to ensure compatibility with almost any PC system; Supports the RS-232 interface