Best DOCSIS 3.1 cable modems
Researched by Deal.ai's shopping agent across stores on November 14, 2026. Prices below are today's.
Top pick: Netgear Nighthawk CM3000 — the one to buy if you want headroom. DOCSIS 3.1 with up to 2.5 Gbps down and 1 Gbps up, plus a 2.5G LAN port so a multi-gig plan isn't bottlenecked at the modem. It's the newest of the Nighthawk line here and the most future-proof.
Who the others suit:
- Hitron CODA57 — best for gig-plus upload plans: 2.5 Gbps down, 2 Gbps up, switchable mid/high split, and the strongest owner rating of the group.
- UniFi Cable Internet — for Ubiquiti households that want it managed in the same app as their network.
- Netgear CM2000 / CM1200 — solid gigabit-class picks if your plan tops out around 1–2 Gbps.
- Motorola MB8611 — a plain, no-frills modem for Xfinity/Cox-style gig plans.
- Motorola MG8725 — only if you'd rather have one box: modem plus WiFi 6 router.
Check your provider's approved-modem list before buying — that matters more than any spec here.
The picks
- #1
Netgear Nighthawk CM3000 DOCSIS 3.1 Cable Modem
- DOCSIS standard: DOCSIS 3.1
- Download speed: up to 2.5Gbps
- Upload speed: up to 1Gbps
- 2.5G LAN ports: one 2.5Gbps LAN Ethernet port
- Gigabit LAN ports: two 1Gbps LAN Ethernet ports
- Link aggregation: up to 2Gbps
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It checks today's price at every store, compares the alternatives and answers in about a minute.
