You found 4 products in Computer Networking Concentrators and Multiplexers - Cisco

Cisco VPN 3080 Concentrator (CVPN3080-RED-BUN)
Concentrator, 100 Mbps, For: PC Platforms
1 store offer at £218

Cisco VPN 3002 Concentrator (CVPN3002-8E-BUN-K9)
Concentrator, 100 Mbps, For: PC Platforms
1 store offer at £569

Cisco VPN 3002 Concentrator (CVPN3002-BUN-K9)
Concentrator, 100 Mbps, For: PC Platforms
1 store offer at £489

Cisco (CWDMSFP1590) Multiplexer
Multiplexer, 2120 Mbps
1 store offer at £1246