Axagon ECA-S2, ExpressCard, 0 - 40 °C, -10 - 80 °C, 4.61" (117 mm), 1.77" (45 mm), 0.748" (19 mm) Axagon ECA-S2. Host interface: ExpressCard. Width: 4.61" (117 mm), Depth: 1.77" (45 mm), Height: 0.748" (19 mm). Data transfer rate: 16 Mbit/s, Data link protocols: 16C550, RS-232, Connectivity technology: Wired