Lowest priceMercury HQ ADSL Broadband Modem Lead with UK Telephone Adaptor - 5.0mView on Amazon
Mercury
£2.00
Compare cable, DSL, and fibre modem prices for UK broadband. Find DOCSIS modems for cable ISPs, VDSL and fibre bridges for Openreach lines, and units suitable for BT, Sky, Virgin Media, and other providers.
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Frequently asked questions
What is the difference between a modem and a router?
A modem connects your home to your ISP's network — cable, DSL, or fibre — while a router shares that connection with your devices over Wi-Fi and Ethernet. Some units combine both, but a standalone modem paired with your own router gives more flexibility.
Which modem do I need for my broadband?
It depends on your line type: DOCSIS modems for cable (e.g. Virgin Media), VDSL/ADSL modems for Openreach copper lines, and fibre bridges or ONTs for full-fibre. Always check your provider's approved device list before buying.