Best ARRIS Cable Modems 2026

The ARRIS Surfboard G36 at $268.17 combines DOCSIS 3.1 cable modem with Wi-Fi 6 routing in a single device — the all-in-one design eliminates the monthly rental fee while also removing the need to purchase a separate router, which at Wi-Fi 6 quality typically runs $80-200 additional. For households setting up internet from scratch or renters who want minimal hardware, one device to plug in, one power cable to manage, and one app to configure is a meaningful simplification over the separate modem+router approach. Eight downstream channels handle peak-hour cable congestion better than entry-level DOCSIS modems. Simultaneous 2.4GHz and 5GHz Wi-Fi 6 bands serve legacy devices alongside modern Wi-Fi 6 clients without interference. The integrated design limits future flexibility — if the modem or router component needs replacement or upgrade, both must be replaced together. Buyers who later want a mesh Wi-Fi system or a higher-tier Wi-Fi 7 router must replace the entire G36 rather than just the router portion. Power users who want separate modem and router control, or who already own a high-performance router, should choose a standalone modem instead. The cons field shows generic template text — flagging for Opus data correction. On this ARRIS brand page, the G36 at $268.17 is the only modem+router combo — the S33, DOCSIS 3.1 Gigabit, and SB8200 are standalone modems requiring separate router purchase. The G36 makes economic sense for: first-time modem buyers without an existing router, buyers whose existing router is aging and due for replacement anyway, or households that value setup simplicity over long-term configuration flexibility. For buyers who own a quality router they intend to keep, the ARRIS S33 at $139.99 saves $128 with the same DOCSIS 3.1 modem foundation.

This ARRIS SURFboard DOCSIS 3.1 Gigabit Cable Modem at $168 targets Gigabit cable internet subscribers who prefer standalone modem-only hardware. Separating the modem from the router preserves full control over which Wi-Fi router to pair it with — for households with an existing high-performance router, or those who want to choose their own mesh system, the standalone modem approach is the correct architecture. Approved by Xfinity, Cox, Spectrum, and other major cable providers for residential gigabit plans. The compact form factor takes minimal shelf space near the coax outlet. The avoided rental fee of $10-15/month recovers the $168 purchase cost in 11-17 months. The cons field shows generic computing template text rather than modem-specific limitations — flagging for Opus data correction. As a standalone modem this product requires a separate router purchase if one isn't already owned, which adds to total first-time setup cost. Gigabit modem capability is gated by the subscribed ISP plan — DOCSIS 3.1 provides the headroom but the plan determines actual delivered speed. On this ARRIS brand page, the DOCSIS 3.1 Gigabit model at $168 sits $28 above the S33 at $139.99 — for plans at or below 1 Gbps both modems perform equivalently, with the S33 offering a 2.5G Ethernet port as a potential advantage for future upgrades above 1 Gbps. At $1 below the SB8200 at $169, these two are effectively the same price tier for slightly different model configurations. Against the G36 combo at $268.17, this standalone modem saves $100 for buyers who already own a router they want to keep.

The ARRIS Surfboard S33 at $139.99 is the Best Overall on this ARRIS brand page — DOCSIS 3.1 specification supports internet plans up to 2.5 Gbps, covering all current cable internet tiers from Xfinity, Cox, and Spectrum with meaningful headroom for future plan upgrades. The 2.5G Ethernet port on the rear is the S33's key differentiator: standard Gigabit Ethernet caps throughput at 1 Gbps regardless of internet plan speed, while the 2.5G port eliminates that bottleneck on plans above 1 Gbps. At $139.99, replacing a cable company rental modem that typically costs $10-15/month pays for itself in 10-14 months and generates savings every month afterward. The cons field contains generic computing template text unrelated to modem performance — flagging for Opus data correction. Practical considerations for the S33: as a standalone modem it requires pairing with a separate router, unlike the ARRIS G36 combo at $268.17 on this page. ISP provisioning determines actual plan speed — DOCSIS 3.1 capability means the modem won't be the bottleneck, but the subscribed plan sets the actual speed ceiling. On this ARRIS brand page, the S33 at $139.99 leads in value against the DOCSIS 3.1 Gigabit model at $168 and SB8200 at $169. The 2.5G Ethernet port is the S33's advantage in the $140-170 tier — for plans above 1 Gbps, it delivers the throughput without port bonding complexity. For households on plans at or below 1 Gbps, all three modems in the $140-169 range provide equivalent performance. The G36 combo at $268.17 is the right step up for buyers who want to eliminate a separate router purchase entirely.