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Docsis 3.1 Modem Comparison - January 2026
Overview: DOCSIS 3.1 modems are the latest and greatest technology available for cable internet connections. They offer speeds up to 10 Gbps and have been shown to be more reliable than previous generations of DOCSIS modems. In this article, we'll compare some of the top DOCSIS 3.1 modems on the market and help you choose the right one for your needs.
Motorola B12 - Advanced Compact Cable Modem | Pairs with Any WiFi Router | Supports Comcast Xfinity, Cox, Spectrum | 2500 Mbps Max | DOCSIS 3.1 | 2.5 Gbps Port | Nex Gen MB8611
Model
Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 2.5 Gbps Ethernet Cable Modem ONLY | Requires Separate WiFi Router
Model
Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)
Model
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
Model
ARRIS (S33-RB) - Cable Modem - DOCSIS 3.1 Multi-Gigabit Cable Modem for Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 1 Year Warranty - Renewed
Model
Hitron CODA DOCSIS 3.1 Cable Modem ONLY | Up to 1 Gbps Max Internet Speeds | Certified with Comcast Xfinity, Charter Spectrum, Cox & More | Requires Separate WiFi Router
Model
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
Here are the top 3 recommended products with more information to help you find the right product for you
9.7
1
Motorola
Motorola B12 - Advanced Compact Cable Modem | Pairs with Any WiFi Router | Supports Comcast Xfinity, Cox, Spectrum | 2500 Mbps Max | DOCSIS 3.1 | 2.5 Gbps Port | Nex Gen MB8611
8.9Easy installation
8.1worth the money
8.1WiFi signal
Why we love it
Fast internet speeds up to 2.5 Gbps.
Stylish design blends with home decor.
Easy setup with most major providers.
Main highlights
Ultra-fast DOCSIS 3.1 performance paired with a 2.5 Gbps ethernet port for true multi-gig internet speeds.
This model replaces the MB8611 with 32 x 8 Channel Bonding
Technical support available via phone, chat or email. Please contact us for any issues with connecting to service
Superior next generation technology but pays for itself. Owning your own modem eliminates up to $168 per year in monthly rental charges.
Multi-gigabit Ethernet speed - A 2.5 GB Ethernet port delivers true high-speed connectivity to even the fastest routers and computers, providing downstream speeds just below 2,500 Mbps and upstream speeds up to 800 Mbps when supported by your internet service plan.
Fast streaming, conferencing, gaming - Applies Active Queue Management (AQM) for reduced Internet latency and better app performance, including online gaming, conferencing, and streaming.
Approved for Comcast Xfinity, Cox, Spectrum, RCN and Astound and supports the fastest internet plans available. The products are residential only. Please verify your ISP requirements prior to purchase.
2 Year Warranty and US Technical Support available
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9.6
2
Hitron
Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 2.5 Gbps Ethernet Cable Modem ONLY | Requires Separate WiFi Router
8.6Easy installation
7.9worth the money
7.9WiFi signal
Why we love it
Supports high-speed internet plans up to 2.5 Gbps.
Compatible with major cable providers.
Reduces latency for smoother streaming and gaming.
Main highlights
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.
CABLE INTERNET REQUIRED: Works EXCLUSIVELY with cable internet service (DOCSIS) from providers like Xfinity, Spectrum, or Cox. Will NOT work with fiber (Verizon FiOS, AT&T), DSL, satellite, or fixed wireless internet. Contact your ISP to confirm compatibility BEFORE purchasing.
POTENTIAL SAVINGS: May eliminate monthly modem rental fees (check current rates with your provider). 30+ years Hitron expertise with 7-day technical support and warranty coverage.
SETUP REQUIREMENTS: You need: (1) Cable internet service, (2) Separate WiFi router with 2.5 Gbps port for full speeds, (3) ISP activation. This modem cannot create WiFi networks or connect multiple devices without additional equipment.
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.
COMPATIBILITY CHECKLIST: Before buying, confirm: (1) You have cable internet (not fiber/DSL), (2) Your plan is 1+ Gbps, (3) You own or will buy a separate WiFi router, (4) Your ISP supports customer-owned modems.
️ MODEM ONLY - NO WiFi INCLUDED: This is a cable modem ONLY and does NOT provide WiFi. You MUST connect it to a separate WiFi router or mesh system to get wireless internet. Without a router, you can only connect ONE device via Ethernet cable.
TRUSTED BRAND + SUPPORT: 30+ years of networking expertise with technical support 7 days per week, warranty coverage, and easy product registration.
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9.5
3
NETGEAR
Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)
9.1Easy installation
8.4worth the money
8.4WiFi signal
Why we love it
Supports high-speed internet up to 1000 Mbps.
Saves money on modem rental fees.
Easy setup with cable providers.
Main highlights
Model CM1000 replaces your cable modem saving you up to 168/year in equipment rental fees
Made for use in the US only
Connect any WiFi router to this modem's Ethernet port to support all your wireless devices
Compatible with all major cable internet providers with internet speed up to 1Gbps. Currently certified with Spectrum and Cox (up to 1Gbps), Xfinity (up to 800Mbps). Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
1 Gigabit Ethernet port connects to your computer or separate WiFi router
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Popularity
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9.9 
9.7
1Motorola
Fast internet speeds up to 2.5 Gbps.
