FRITZ! Card PnP, 14.4 Kbit/s, Wired, X.75, EURO-ISDN, ISDN DSS1/ETSI, 16 MB, Intel 486, 1 x network - ISDN - RJ-45 FRITZ! Card PnP. Modem speed: 14.4 Kbit/s, Connectivity technology: Wired, Supported protocols: X.75, EURO-ISDN, ISDN DSS1/ETSI. Minimum RAM: 16 MB, Minimum processor: Intel 486. I/O ports: 1 x network - ISDN - RJ-45