StarTech.com 2 Port ExpressCard RS232 Serial Adapter Card with 16950 UART (EC2S950) Connect serial devices to any notebook with an available Express Card slot. Supports the RS232 specification. StarTech. com's Lifetime Warranty Free Lifetime Technical Support Offers 2 DB9 RS-232 ports to connect a serial device to a notebook with an available Express Card slot 128-byte deep FIFO data buffer Maximum data transfer rate up to 921. 6 kbps Automated in-band flow control