StarTech.com EC13941A1B, ExpressCard, LSI L-FW643, 1.73" (44 mm), 4.53" (115 mm), 0.787" (20 mm), 1.09 oz (31 g) StarTech.com EC13941A1B. Host interface: ExpressCard. Chipset: LSI L-FW643. Width: 1.73" (44 mm), Depth: 4.53" (115 mm), Height: 0.787" (20 mm). Package width: 5.71" (145 mm), Package depth: 9.25" (235 mm), Package height: 2.36" (60 mm). Data transfer rate: 400 Mbit/s, Connectivity technology: Wired, Compatible operating systems: Windows 2000/2003/XP/Vista