StarTech.com 1 Port ExpressCard RS232 Serial Adapter Card with 16950 UART EC1S232U ExpressCard design lets you connect serial devices to any notebook with an available Express Card slot USB Based ExpressCard design offers a fully Plug &amp; Play and Hot Plug compatible interface for simple installation and removal of your peripherals Data transfer rates of up to 921.6 Kbps for peak serial device performance High Performance 16C950 UART with maximum data transfer rate up to 921.6 Kbps Fits into 34mm ExpressCard slots on your notebook 128-Byte transmit &amp; receive FIFO Compatible with USB2.0 Full Speed throughput