ARRIS SURFboard S34 DOCSIS 3.1 Multi‑Gig Cable Modem | 2.5Gbps + 1Gbps Ethernet Ports | Xfinity, Cox, Spectrum for Cable Internet Plans up to 2.5Gbps Next Gen Upstream. Modem Only, Router Required
$218.98
Price: $218.98
(as of Nov 28, 2025 14:53:33 UTC – Details)
The S34 combines DOCSIS 3.1 technology with a 2.5 Gigabit Ethernet port to unlock multiGig internet plans and support for next generation upload speed tiers. Future proof your home network!
Multi‑Gig speed for today & tomorrow: DOCSIS 3.1 performance supports cable internet plans up to 2.5 Gbps, delivering ultra‑fast streaming, gaming, and downloads.
Future Proof Upstream: Support for the next generation upload speed tiers offered by cable internet providers.
Save on rental fees: Own your modem and avoid monthly equipment charges—check with your cable provider for plan compatibility.
Compact, modern design: Space‑saving footprint with simple LED indicators for power, upstream/downstream, and online status.
Easy setup: Connect cable, power on, and activate with your cable provider. Then connect a Wi‑Fi router to the Ethernet port for home Wi-Fi coverage.
Modem only: This cable modem requires a separate Wi-Fi router or mesh system for home Wi-Fi network.
Fast Ethernet: Provides a 2.5 Gigabit Ethernet port to support connecting high speed Wi-Fi routers. Plus, a 1 Gigabit Ethernet port lets you connect an additional wired device or backup handoff (service provider configuration dependent).
Provider compatibility: All SURFboard modems are CableLabs certified to work across major US Internet Service Providers. Tested and qualified for use with Cox, Xfinity, and Spectrum. Check with your provider to confirm device model support.
Not compatible with fiber, DSL, or satellite services.
Customers say
Customers find the cable modem to be of good quality, capable of handling faster upload speeds, and easy to install anywhere. They appreciate its performance without buffering or lag, and consider it good value for money. The modem’s functionality receives mixed feedback, with some reporting it works faultlessly while others experience connection drops. Customers note that the device tends to run quite hot.
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