Other Ports: 2 x Serial Ports Interface: 32-bit CardBus Type II Operating Systems Supported: Supports Windows 2000, Server 2003, XP, & Vista OS Features: Support up to two RS232 serial ports Compliant with 32-bit Cardbus PC Card Type II standard Hot Plug and Plug-&-Play compatibility Compatible with industrial standard 16C550 UART Automated hardware / software flow control available Supports serial data transfer rate of up to 1Mbps Supports 5-, 6-. 8-bit data framing Supports 1 or 2 Stop bit Parts: Lifetime limited Labor: Lifetime limited