Compare ARRIS S33, Motorola MB8611, and Hitron CODA56 by DOCSIS 3.1, 2.5GbE handoff, ISP approval risk, and router pairing.
Cable-modem shopping should start with the provider approval list and the speed tier. After that, compare the Ethernet handoff, voice requirements, and whether the home will use a separate router or mesh system.
Quick answer
Start with ARRIS SURFboard S33 DOCSIS 3.1 Cable Modem if your main need is cable internet users moving from rental gear to a standalone 2.5gbe modem. Compare the trade-offs before buying, especially no router or wi-fi functions.
Best starting pick
Best for: Cable internet users moving from rental gear to a standalone 2.5GbE modem
Skip if: No router or Wi-Fi functions
Price band: $$
Prices, availability, shipping, coupons, and seller details can change. Always confirm the current product listing and return policy before buying.
Start here if you already know the job you need the product to solve.
ARRIS
Best for
Cable internet users moving from rental gear to a standalone 2.5GbE modem
Check first
No router or Wi-Fi functions
Facts
ASIN B08FMSC5WZ · wired
Motorola
Best for
Standalone 2.5GbE modem handoff to an owned router
Check first
No Wi-Fi, routing, or voice port
Facts
ASIN B08DDFKXKC · wired
Hitron
Best for
Budget 2.5GbE DOCSIS 3.1 modem replacement
Check first
No Wi-Fi, router, or voice features
Facts
ASIN B0BKZ4DHNL · wired
We use manufacturer specs where available, then treat Amazon as a listing-verification step for ASIN, bundle, seller, coupon, and return-window risk.
| Pick | Official specs | Amazon/listing anchor | Version or price risk | Updated |
|---|---|---|---|---|
| ARRIS SURFboard S33 DOCSIS 3.1 Cable Modem | 2 sources | ASIN B08FMSC5WZ | Confirm ASIN B08FMSC5WZ, modem-only model, seller, and ISP approval. | July 9, 2026 |
| Motorola MB8611 DOCSIS 3.1 Cable Modem | 2 sources | ASIN B08DDFKXKC | Confirm ASIN B08DDFKXKC, modem-only model, ISP approval, and seller. | July 9, 2026 |
| Hitron CODA56 DOCSIS 3.1 Cable Modem | 2 sources | ASIN B0BKZ4DHNL | Confirm ASIN B0BKZ4DHNL, modem-only design, ISP approval, and seller. | July 9, 2026 |
Start with ARRIS S33 when the SURFboard ecosystem and 2.5GbE handoff are the priorities.
Compare Motorola MB8611 when the buyer wants a known modem-only alternative.
Compare Hitron CODA56 when price and ISP upload support matter most.
Do not buy these for fiber, DSL, or cable voice service that needs an eMTA modem.
The best modem on paper is the wrong buy if the cable provider will not provision it for the selected plan in the buyer's region.
The downstream router or mesh WAN port still needs to accept more than gigabit, and the plan must be provisioned above gigabit for internet speed tests to show the benefit.
Spend more when the wired path supports NAS, gaming, office calls, or future 2.5G and 10G upgrades.
Spend less for simple TV stands, printer corners, or rooms that only need basic gigabit Ethernet.
wired
Before buying ARRIS S33, Motorola MB8611, or Hitron CODA56, check ISP approval, voice support, router WAN speed, and whether the plan can exceed gigabit.
wired
Decide whether to keep an ISP gateway, buy a modem-only box, or split modem and Wi-Fi before spending on a mesh system.
wired
Bridge mode can keep the ISP gateway while letting a better router or mesh system handle Wi-Fi, but support and feature tradeoffs matter.
ARRIS
A multi-gig cable-modem buying guide for the S33, including DOCSIS 3.1, its 2.5GbE plus 1GbE port layout, ISP approval risk, and why a separate router is still required.
Best for: Cable internet users moving from rental gear to a standalone 2.5GbE modem
Motorola
A modem-only buying guide for MB8611, including the 2.5GbE Ethernet port, DOCSIS 3.1 support, ISP approval checks, and when it is a better value than renting a gateway.
Best for: Standalone 2.5GbE modem handoff to an owned router
Hitron
A value-focused CODA56 guide covering DOCSIS 3.1, its 2.5GbE port, no-router/no-Wi-Fi design, ISP compatibility, and why it belongs on a shortlist with S33 and MB8611.
Best for: Budget 2.5GbE DOCSIS 3.1 modem replacement
No. These are modem-only products. A separate router, mesh system, or firewall is required.
Not by itself. It removes a modem handoff bottleneck only when the plan and router can use more than gigabit.
No. Fiber service uses an ONT or provider-specific fiber equipment, not a DOCSIS cable modem.