Dialogic Eiconcard S91 V2. Connectivity technology: Wired, Host interface: PCI. Data transfer rate (max): 2 Mbit/s, Modem speed: 128 Kbit/s. Data link protocols: ISDN, SDLC, HDLC, X.25, PPP. Internal memory: 8 MB. Operating temperature range (T-T): 0 - 50 °C, Operating relative humidity range: 5 - 90 %