You found 4 products in Expansion Modules - 3Com

3Com (3C13762) Expansion Module
2 Mbps, Serial RS-232 Interface, Cabling: Serial RS-232, V.24, V.35, X.21
1 store offer at £612

3Com (3C17666) for Switch 4200G Expansion Module
XENPAK Interface, Cabling: Ethernet 10GBase-X
1 store offer at £637

3Com Multi-function Interface Module (3C13761) Expansion Module
100 Mbps, Plug-In Module, Cabling: Ethernet 100Base-TX, Ethernet 10Base-T
1 store offer at £444

3Com (3C17526) Expansion Module
Cabling: Ethernet 10GBase-X
1 store offer at £8538