StarTech.com 2 Port 1b 1a ExpressCard 34mm Laptop 1394 FireWire Adapter Card (EC13941A1B) Add 2 FireWire ports to a laptop computer without having to use external power adapters Small form factor design fits in 34mm and 54mm ExpressCard slots for versatility and portability Backed by a StarTech. com lifetime warranty and free lifetime technical support One 9-pin FireWire 800 port with transfer rates up to 800Mbps One 6-pin FireWire 400 port with transfer rates up to 400Mbps Compliant with IEEE 1394b and backward compatible with IEEE 1394a - 2000 as well as 1394-1995 standards Optional external power support for high-powered FireWire devices Fits in both 34mm and 54mm ExpressCard slots