Full Details from Amazon.com : http://www.amazon.com/gp/product/B002LITGA4?tag=onigi-20
StarTech.com 1 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART EC1S952
The high performing single chip design optimizes speed reliability and power while reducing CPU load by as much as 48
Compatible with both 34mm and 54mm ExpressCard slots includes a slot spacer for greater security while installed in 54mm slots
Supports high performance 16C950 UART with baud rates up to 1152Kbps and backwards compatible with 16C550 UART
ExpressCard 34mm and 54mm with included adapter Form Factor
Single chip design optimizes speed reliability and power
Fully compliant with Express Card 10 Specifications
