EXSYS PCMCIA 4S Serial RS-232 card, 16/32-Bit. Host interface: CardBus. Data transfer rate: 0.921 Mbit/s. Width: 117 mm, Depth: 53 mm, Weight: 300 g. Operating temperature range (T-T): 0 - 70 °C, Operating relative humidity range: 5 - 90 %. Connectivity technology: Wired