The Best Asus Docsis 31 Cable Modem of 2025 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Asus Docsis 31 Cable Modem of 2025. Check our ranking below.

2,916 Reviews Scanned

Rank No. #1

ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2 -1Gbps Ethernet Ports | Works with Xfinity, Cox, Spectrum | For Cable Internet Plans up to 2Gbps | Modem Only, Router Required

Multi‑Gig speed for today & tomorrow: DOCSIS 3.1 performance supports cable internet plans up to 2 Gbps, delivering ultra‑fast streaming, gaming, and downloads.
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 discrete 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.

Rank No. #2

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

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.

Rank No. #3

🚫 CABLE MODEM ONLY - NOT FOR FIBER: This is EXCLUSIVELY for cable internet (DOCSIS) from Xfinity, Spectrum, Cox. Will NOT work with fiber internet (Verizon FiOS, AT&T Fiber, Google Fiber), DSL, satellite, or 5G home internet. Verify your internet type BEFORE purchasing.”
⚠️ NO WiFi, NO Voice, NO Router Features: This device ONLY connects to your cable line and provides ONE Ethernet port. It does NOT create WiFi networks, has NO phone/voice capabilities, and cannot connect multiple devices without a separate WiFi router
🚀 MULTI-GIG PERFORMANCE: Supports internet plans up to 2.5 Gbps with 2.5 Gbps Ethernet port. Designed for plans 1 Gbps and faster from certified providers: Xfinity (up to 2.33 Gbps), Spectrum (1 Gbps), Cox (2 Gbps). Verify your plan speed and provider compatibility.
🔧 REQUIRED FOR SETUP: (1) Cable internet service (not fiber), (2) Separate WiFi router with 2.5 Gbps port for full speeds, (3) ISP activation call. Without a router, you can connect only ONE device via the single Ethernet cable included.
🎮 GAMING & STREAMING OPTIMIZED: DOCSIS 3.1 technology with low latency for smooth 4K streaming, gaming, and video calls. Backward compatible with DOCSIS 3.0 networks.

SaleRank No. #4

ARRIS (SB8200-RB) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - Renewed

Approved for Cox, Spectrum and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Froniter or other Fiber Optic, DSL or Satellite internet service providers.
Does NOT include Wi-Fi and Does NOT support cable digital voice service.
The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It is approved for cable internet speed plans up to 1 Gbps. Check your cable ISP website to confirm compatibility.
32 downstream x 8 upstream DOCSIS 3.0 bonded channels, or 2 downstream x 2 upstream OFDM DOCSIS 3.1 channels.
Two 1-Gigabit Ethernet ports

Rank No. #5

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM3000-1AZNAS) – Approved for Today’s Fastest Speeds - Works With all Cable Providers, Incl. Xfinity, Spectrum, Cox - Cable Plans up to 2.5Gbps

Mid/high-split DOCSIS 3.1 cable modem delivers up to 2.5Gbps of download speeds and 1Gbps of upload speeds, works with your existing WiFi Router (separate unit)
Specifically engineered for today’s fastest DOCSIS 3.1 cable internet speeds that can only be accessed with mid/high-split technology, such as Xfinity’s 2Gbps download speeds and 200Mbps upload speeds. Works with all major US internet providers
Blazing-fast download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
Impressive 10x faster upload speeds delivers seamless multi-family gaming, video conferencing and uploading large files—simultaneously. Plus provides easy remote access to your home security cameras and NAS files
For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system (separate existing product) to this CM3000 cable modem

Last update on 2025-07-06 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What kind of modem does the Asus CM-32 use?

A: Video Player is loading. This is a modal window. Featuring Intel Inside, the ASUS CM-32 combines a DOCSIS 3.0 32×8 cable modem with a Wifi AC2600 router powered by exclusive wireless technologies to deliver full bandwidth and coverage without monthly rental fees.

Q: Which is faster cable modem or Docsis 3.1?

A: With a total networking speed of about 6000 Mbps— CMAX6000 is 2.3X faster than 802.11ac 4×4 dual-band cable modem routers. DOCSIS 3.1 offers a huge progress in download and upload internet speeds, enjoying your current internet service and be ready for the fastest speeds available in your area.

Q: Which is the smallest DOCSIS 3.1 cable gateway?

A: Small & Elegant Design with embedded WiFi antenna makes it the smallest DOCSIS 3.1 WiFi 6 cable gateway in retail cable industry. H Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our AI Consumer Report tool based upon the data collected.

Q: Can a Asus router have a cable modem?

A: ASUS Router with a built-in cable modem. However in its execution it is a failure. Because it has a cable modem, ASUS will not keep the Firmware up to date. According to ASUS site, “cannot be installed any drivers by yourselves. The default setting, function and application cannot be changed.”