You found 36 products in Computer Modems - External

Zoom 2986C Analog Modem (2986-72-01c)
Analog Modem, External Enclosure, USB Interface, 56 Kbps
3 store offers from £35 - £41

Zoom 4300 (4300-72-68a)
External Enclosure, BlueTooth Interface, 723 Kbps
1 store offer at £59

Cisco (WIC-1DSU-T1-V2=) WAN Interface Card (WIC1DSUT1V2GN)
WAN Interface Card, External Enclosure, PC Card Interface, 1.5 Mbps
1 store offer at £574

Intel Xircom RealPort Ethernet 10/100 + Modem 56 GlobalACCESS Network / Modem Combo (REM56GNAP5)
Network / Modem Combo, External Enclosure, PC Card Interface, 56 Kbps
2 store offers from £68 - £69

Olicom OC-2232 Modem
Modem, External Enclosure, PC Card Interface, 33.6 Kbps
1 store offer at £55

Dynamode (M-ADSL-USB-C50)
DSL Modem, External Enclosure, USB Interface, 8 Mbps
1 store offer at £36