Spectrum Approved Modem List 2026
If you have Charter Spectrum Internet, you can stop paying the monthly Wi-Fi fee and avoid the rented gateway by switching to a modem you own. The catch is that Spectrum only activates modems on its official approved list. This guide shows every cable modem currently approved for Spectrum in 2026, organized by service tier, plus our top picks for each plan.
Key Takeaways
- Spectrum approves about 29 DOCSIS 3.1 modems for plans up to 1 Gig, plus a small group of older DOCSIS 3.0 models for plans up to 500 Mbps. The DOCSIS 3.0 group loses support on October 28, 2026.
- For most Spectrum customers in 2026, the best buys are the ARRIS S33, Motorola MB8611, and Hitron CODA56. All three are DOCSIS 3.1 with a 2.5 GbE port.
- Spectrum's 2 Gig plan typically requires Spectrum-provided equipment. Retail approved modems are only authorized for non-symmetrical tiers up to 1 Gig.
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Why Use a Spectrum Approved Modem
Spectrum will only activate modems on its approved list. If your modem is not on the list, technical support will not help with it and in most cases it will not provision on the network at all. Owning your own approved modem also avoids the $10 per month Advanced WiFi fee (when paired with your own router) and lets you upgrade Wi-Fi separately whenever you want.
Spectrum Internet Plans in 2026
Spectrum offers four main Internet plans. Picking the right modem starts with knowing which plan you have.
| Plan | Download Speed | Best For | Modem Type Needed |
|---|---|---|---|
| Internet Advantage | Up to 100 Mbps | 1 to 4 devices, basic streaming and browsing | DOCSIS 3.1 with 1 GbE port |
| Internet Premier | Up to 500 Mbps | Multi-device homes, HD streaming, remote work | DOCSIS 3.1 with 1 GbE port |
| Internet Gig | Up to 1 Gbps | Heavy gaming, 4K streaming, large households | DOCSIS 3.1 with 2.5 GbE port |
| Internet 2 Gig | Up to 2 Gbps (select markets) | Power users, smart homes, content creators | Spectrum-provided equipment required |
A 1 GbE Ethernet port caps your wired speed at around 940 Mbps in real-world use, so for the Gig plan you want a modem with a 2.5 GbE port to actually receive the speeds you are paying for. For Advantage and Premier, a 1 GbE port is plenty.
Best Spectrum Approved Modem for Each Plan
Best for Internet Advantage (100 Mbps)
At this tier, almost any DOCSIS 3.1 modem works perfectly. We recommend the ARRIS SB8200 if you want to spend the least amount of money. It is reliable, has been on the market for years, and gives you headroom to upgrade your plan later without buying a new modem.
Best for Internet Premier (500 Mbps)
The Motorola MB8611 is the sweet spot here. It has a 2.5 GbE port (future-proof for a Gig upgrade), Active Queue Management for low gaming latency, and is comfortably priced. The Hitron CODA56 is also a strong value alternative at this tier.
Best for Internet Gig (1 Gbps)
The ARRIS S33 is the top pick. It is DOCSIS 3.1 with a 2.5 GbE port plus a 1 GbE port, uses the Broadcom BCM3390 chipset for stable low-latency performance, and runs cool. The ARRIS S34 is the newer version with mid-split capability for faster uploads where Spectrum has rolled it out.
Best for Future-Proofing
The NETGEAR CM3000 supports mid/high-split DOCSIS 3.1 technology, which can unlock up to 1 Gbps upload speeds in markets where Spectrum has upgraded its network. If you plan to stay with Spectrum for several years and want a modem ready for ongoing upload improvements, this is the one.
Best for Internet 2 Gig
Spectrum's 2 Gig plan currently requires Spectrum-provided equipment. No retail modems are approved for this tier yet. If you are on the 2 Gig plan, you will need to use the gateway Spectrum supplies until DOCSIS 4.0 retail modems become widely available later in 2026.
Full Spectrum Approved Modem List for Plans Up to 1 Gig (2026)
All modems in the table below are DOCSIS 3.1 and approved for Spectrum Internet plans from 100 Mbps up to 1 Gbps on non-symmetrical tiers.
| Brand | Model | Built-In Wi-Fi | Notes |
|---|---|---|---|
| ARRIS | G18 | Yes (Wi-Fi 6) | Modem and router combo |
| ARRIS | G20 | Yes (Wi-Fi 6) | Modem and router combo |
| ARRIS | G34 | Yes | Combo; Intel Puma chipset, may have latency issues |
| ARRIS | G36 | Yes | Combo; Intel Puma chipset, may have latency issues |
| ARRIS | G54 | Yes (Wi-Fi 7) | Combo; Intel Puma chipset, may have latency issues |
| ARRIS | S33 | No | Top pick for Gig; 2.5 GbE port |
| ARRIS | S34 | No | Newer S33; mid-split capable |
| ARRIS | SB8200 | No | Reliable budget pick; two 1 GbE ports |
| ARRIS | SBG8300 | Yes | Combo; Intel Puma chipset, may have latency issues |
| ASUS | CMAX6000 | Yes (Wi-Fi 6) | Modem and router combo |
| Hitron | CODA | No | Intel Puma chipset, may have latency issues |
| Hitron | CODA56 | No | Best value DOCSIS 3.1 pick; 2.5 GbE port |
| HUMAX | HGD310 | No | DOCSIS 3.1 standalone |
| Motorola | B12 | No | Multi-gig standalone; 2.5 GbE port |
| Motorola | MB8600 | No | Older 1 GbE standalone; reliable |
| Motorola | MB8611 | No | Top pick for Premier and Gig; 2.5 GbE port, AQM |
| Motorola | MG8702 | Yes | Modem and router combo |
| Motorola | MG8725 | Yes (Wi-Fi 6) | Modem and router combo; LLD certified |
| NETGEAR | C7800 | Yes | Modem and router combo |
| NETGEAR | CM1000 | No | 1 GbE standalone |
| NETGEAR | CM1100 | No | Two 1 GbE ports, supports link aggregation |
| NETGEAR | CM1200 | No | Four 1 GbE ports, link aggregation |
| NETGEAR | CM2000 | No | 2.5 GbE standalone |
| NETGEAR | CM2500 | No | Mid/high-split capable; 2.5 GbE port |
| NETGEAR | CM3000 | No | Mid/high-split capable; best future-proofing pick |
| NETGEAR | CAX30S | Yes (Wi-Fi 6) | Modem and router combo |
| NETGEAR | CAX80 | Yes (Wi-Fi 6) | Modem and router combo |
| NETGEAR | CBR750 | Yes | Combo; Intel Puma chipset, may have latency issues |
| Ubiquiti | UCI | No | Rackmount enterprise modem |
Browse the full lineup of Spectrum compatible modems in our Charter Spectrum modem collection or see all DOCSIS 3.1 modems.
Spectrum Approved Modems for Plans Up to 500 Mbps (Being Retired)
The modems below are older DOCSIS 3.0 devices. They are still on Spectrum's approved list today but Spectrum has announced it will stop supporting them after October 28, 2026. If you own one, you are fine for now, but plan to upgrade before that date. Do not buy a new one in 2026.
| Brand | Model | Channels | Built-In Wi-Fi |
|---|---|---|---|
| ARRIS | SBG7400AC2 | 24x8 | Yes |
| Linksys | CG7500 | 24x8 | Yes |
| Motorola | MG7700 | 24x8 | Yes |
| NETGEAR | C6900 | 24x8 | Yes |
| NETGEAR | C7000 | 24x8 | Yes |
| NETGEAR | C7000v2 | 24x8 | Yes |
| NETGEAR | C7500 | 24x8 | Yes |
| NETGEAR | CM600 | 24x8 | No |
How to Choose the Right Spectrum Modem in 2026
Match the Modem to Your Plan Speed
If you have Spectrum Internet Advantage (100 Mbps) or Premier (500 Mbps), any DOCSIS 3.1 modem in the list above will handle it. If you have Internet Gig (1 Gbps), pick a modem with a 2.5 GbE Ethernet port. A 1 GbE port caps your wired speed around 940 Mbps, which means you will not get the full speed you are paying for.
Decide on Built-In Wi-Fi or Separate Router
A standalone modem like the S33, MB8611, or CODA56 paired with your own Wi-Fi router gives you better speed, longer life, and easier upgrades. An all-in-one modem with built-in Wi-Fi (like the ARRIS G36 or NETGEAR CAX80) is simpler but locks you into that vendor's Wi-Fi.
Avoid DOCSIS 3.0 Models
Spectrum is phasing out DOCSIS 3.0 modems after October 28, 2026. Do not buy one in 2026, even used or on clearance. Always choose DOCSIS 3.1.
Avoid Older Intel Puma Chipset Models
A handful of combo modems on Spectrum's approved list use the Intel Puma 6 or 7 chipset, which has a known latency issue that affects gaming, video calls, and live streaming. Affected models include the ARRIS G34, G36, G54, SBG8300, NETGEAR CBR750, and Hitron CODA (the original, not the CODA56). If you do a lot of gaming or video calling, choose a Broadcom-based modem like the S33, MB8611, or CODA56 instead.
How to Activate Your New Spectrum Modem
Activation is simple and takes about 10 to 15 minutes.
- Unplug your old Spectrum modem from power and from the coax (cable) wall outlet.
- Connect the coax cable to the new modem and plug in the power adapter.
- Wait two to five minutes for the lights to go solid.
- Go to spectrum.net/selfinstall or call Spectrum at 1-833-267-6094 to activate. You will need the modem's MAC address, which is on a sticker on the bottom of the device.
- Once activated, plug an Ethernet cable from the modem into your Wi-Fi router and you are online.
For a deeper walkthrough, see our guide on the best modems for Spectrum by speed tier.
Frequently Asked Questions
What modems are approved by Spectrum in 2026?
Spectrum approves about 29 DOCSIS 3.1 modems for plans up to 1 Gig in 2026. The most popular picks are the ARRIS S33, ARRIS S34, ARRIS SB8200, Motorola MB8611, Motorola MB8600, Hitron CODA56, and NETGEAR CM2000, CM3000, and CM1200. A small group of older DOCSIS 3.0 modems is still approved for plans up to 500 Mbps but will lose support after October 28, 2026.
Can I use any modem with Spectrum?
No. Spectrum will only activate modems that appear on its official approved list. Using a non-approved modem usually means it will not provision on the network, and Spectrum will not provide support for it. Always check the approved list before buying.
What is the best modem for Spectrum 1 Gig in 2026?
The best modem for the Spectrum 1 Gig plan is the ARRIS S33. It is DOCSIS 3.1 with a 2.5 GbE port, runs cool, and uses the Broadcom BCM3390 chipset for low latency. The Motorola MB8611 and Hitron CODA56 are also excellent choices with similar specs.
What modem do I need for Spectrum 2 Gig?
Spectrum's 2 Gig plan currently requires Spectrum-provided equipment. There are no retail approved modems for the 2 Gig tier as of 2026. Retail DOCSIS 4.0 modems are expected to begin appearing in mid-to-late 2026, which may change this.
Do I need a DOCSIS 3.1 modem for Spectrum?
Yes. For new purchases in 2026 you should buy a DOCSIS 3.1 modem. Spectrum is retiring DOCSIS 3.0 modems after October 28, 2026. DOCSIS 3.1 also supports faster speeds, better security, and lower latency than DOCSIS 3.0.
How much can I save by using my own Spectrum modem?
Spectrum includes the modem for free with every plan, but the Advanced WiFi router costs $10 per month on the Advantage and Premier plans (it is included free with the Gig plan). By using your own modem and router, you save around $120 per year on the Advantage and Premier plans. A quality DOCSIS 3.1 modem pays for itself in about 18 to 24 months and lasts five years or longer.
Will my Spectrum modem work after October 28, 2026?
If you own a DOCSIS 3.1 modem on the current approved list, yes, it will continue to work. If you own one of the older DOCSIS 3.0 modems listed for plans up to 500 Mbps (like the NETGEAR C7000 or Motorola MG7700), Spectrum will stop supporting it after October 28, 2026 and you will need to upgrade to a DOCSIS 3.1 model.
