Comcast XFINITY Modem Reviews

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XFINITY Modems 2021

View the most up-to-date and accurate information on XFINITY modems. Other websites that try to copy us, don’t provide reliable info. In fact, there are over 70 modems approved by Comcast. However, the info they provide is not the best either. Over 20 of the modems are not worth buying due to faulty parts, poor feedback, and so forth, all info Comcast chooses to ignore.

Easily find the best one here for your Comcast Internet tier. We give you the best options for each different type. You can also view the lists by type including ones without WiFi, modem/router combos (gateways), voice, and DOCSIS 3.1.

XFINITY ModemXFINITY Modem RouterXFINITY XFI ModemXFINITY Gigabit 3.1 ModemXFINITY Voice Modem

NETGEAR CM600 24x8 Cable Modem

NETGEAR CM600 Cable Modem CM600-100NAS

The NETGEAR CM600 cable modem is ideal for Extreme Pro Internet customers. However, it is compatible with almost every cable provider. The CM600 is for speed tiers 400 – 600 Mbps. It is Cable Labs certified and with DOCSIS 3.0 is 24X faster than 2.0 devices. NETGEAR CM600 Quick View Specs & Features Top […]

motorola mg7700 xfinity wifi cable modem

Motorola MG7700 24x8 Cable Modem Plus AC1900 Dual Band WiFi Gigabit Router with Power Boost(ad)

Docsis 3.0 - For Comcast XFINITY Tiers up to Extreme Pro / 600 Mbps. Connect All Your Devices. The built-in router provides high-speed shared Internet access to smartphones, HDTVs, computers, tablets, game stations, streaming media devices, and other Ethernet and WiFi devices. Amazon

XFINITY XB6 xFi Advanced Gateway Modem TG3482G

XFINITY XB6 xFi Gateway Modem TG3482G

The following is information on the XFINITY XB6 xFi Advanced Gateway Modem. The XB6 is also referred to as either the ARRIS TG3482G (most common) or Technicolor CGM4140COM. Renting either gateway from Comcast is generally a $14 a month extra charge. You can buy your own Comcast modem and save this monthly charge. . […]

ARRIS SURFboard S33 DOCSIS 3.1 Cable Details & Review

ARRIS SURFboard S33 DOCSIS 3.1 Modem

The ARRIS SURFboard S33 is a sleeker design than all of the prior SURFboard modems. The S33 is a DOCSIS 3.1 cable modem capable of multi-gig speeds up to 3.5 Gbps. This is accomplished by using link aggregation, basically by linking both Ethernet ports together. ARRIS S33 Cable Modem Review With CommScope now owning the […]

Motorola MT7711 XFINITY Voice Modem

Motorola MT7711 XFINITY Voice WiFi Modem

The Motorola MT7711 is the newest WiFi cable modem with voice capabilities. It is currently only approved for Comcast Voice customers. The Motorola MT7711 provides for speeds up to 650Mbps. Also, it has a built-in AC1900 WiFi router with Power Boost and AnyBeam beamforming providing a longer range than most modem and router combos. […]

Table of Contents

What Modem For XFINITY?
- Modems List
  - Plans & Modem Requirements
Modem / Router (Gateways)
DOCSIS 3.1 Gigabit Modems
Comcast Voice Modems
- Frequently Asked Questions
  - Other XFINITY Accessories

What Modem For XFINITY?

The modem that you need for your individual XFINITY service depends on three factors. First, your Internet speed. If you are unsure what your subscribed speed is, you will find it on your bill. Modems are all built to handle many different speeds, so this is very helpful. Secondly, the right modem for you depends on your other XFINITY services. Do you have home phone service with Comcast? If so, then you will need an eMTA unit, a.k.a. voice modem built exclusively for XFINITY voice and internet.

Last but not least, would you prefer a modem with built-in WiFi, or would you like a modem and separate router? How big is your home? With that said, you can see that not everyone can use the same XFINITY modem. Therefore, you should not rush into buying just any modem because it may not work for your services. There are many factors that decide for you, which modem you need.

If you are looking for the XFINITY Prepaid Internet plan, you can order a self-install kit on Amazon.

XFINITY Modems List – Feb. 2021

Easily view, sort, and search the list of cable modems approved by Comcast for XFINITY Internet services. Modems highlighted in red were built with the bad Puma 6 chipset and are here for reference only. Modems in yellow are at or near end-of-life. This means support has or will run out soon. However, they are cheaper than other modems, Buy at your own discretion.

Brand	MPN	Top XFINITY Speed	DOCSIS Version	WIFI-5	WIFI-6	LAN Ports	Voice Ports	USB Ports
ARRIS SURFboard	S33	2000	3.1	x	x	x	x	x
NETGEAR Nighthawk	CM2050V	2500	3.1	x	x	x	2	x
Motorola	MB8611	2500	3.1	x	x	x	x	x
NETGEAR Nighthawk	CM2000	2500	3.1	x	x	x	x	x
NETGEAR Nighthawk	CAX80	1000	3.1	Compatible	AX6000	4	x	1
ARRIS SURFboard	T25	2000	3.1	x	x	x	2	x
ARRIS SURFboard	SBG8300	1000	3.1	AC2350 Wave 2	x	4	x	x
ARRIS SURFboard	SB8200	2000	3.1	x	x	2 For Port Bonding Only	x	x
ASUS	CMAX6000	2000	3.1	Compatible	AX6000	4	x	x
Humax	HGD310	6000	3.1	x	x	2 - Port Bonding	x	x
Motorola	MG8702	1000	3.1	AC3200	x	4	x	1
Motorola	MB8600	6000	3.1	x	x	4 - Port Bonding	x	x
NETGEAR Nighthawk	CM1200	2000	3.1	x	x	4 - Port Bonding	x	x
NETGEAR Nighthawk	CM1150V	2000	3.1	x	x	4 - Port Bonding	2	x
NETGEAR Nighthawk	CM1100	2000	3.1	x	x	2 - Port Bonding	x	x
NETGEAR Nighthawk	CM1000 v1-v2	1000	3.1	x	x	1	x	x
NETGEAR Orbi	CBR750	1000	3.1	Compatible	AX4200	4	x	x
NETGEAR Orbi	CAX30	2500	3.1	Compatible	AX2700	4	x	1
NETGEAR Nighthawk	C7800	2000	3.1	AC3200	x	4	x	1
NETGEAR	CM600	600	3.0	x	x	x	x	x
ARRIS SURFboard	SBV3202	600	3.0	x	x	x	2	x
ASUS	CM32	600	3.0	AC2600	x	4	x	1
NETGEAR	CM700	600	3.0	x	x	x	x	x
NETGEAR Orbi	CBR40	600	3.0	AC2200	x	4	x	x
Motorola	MG7540	300	3.0	AC1600	x	4	x	x
Motorola	MB7420	300	3.0	x	x	x	x	x
ARRIS SURFboard	SB6183	300	3.0	x	x	x	x	x
ASUS	CM-16	300	3.0	x	x	x	x	x
ARRIS SURFboard	SBG7600AC2	600	3.0	AC2350 Wave 2	x	4	x	1
ARRIS SURFboard	SBG7580AC	600	3.0	AC1750	x	4	x	1
Linksys	CM3024	400	3.0	x	x	x	x	x
NETGEAR	C6900	400	3.0	AC1900	x	4	x	x
NETGEAR	C7000	400	3.0	AC1900	x	4	x	1
NETGEAR	C7100V	400	3.0	AC1900	x	4	2	2
Motorola	MT7711	400	3.0	AC1900	x	4	2	x
ARRIS SURFboard	SBG7400AC2	400	3.0	AC2350	x	4	x	1
Motorola	MG7700	400	3.0	AC1900	x	4	x	x
ARRIS SURFboard	SB6190	600	3.0	x	x	x	x	x
Linksys	CG7500	400	3.0	AC1900	x	4	x	x
ARRIS SURFboard	SVG2482AC	400	3.0	AC1750	x	4	2	2
TP-Link	CR1900	400	3.0	AC1900	x	4	x	2
NETGEAR	C7500	400	3.0	AC3200	x	4	x	2
Motorola	MB7621	400	3.0	x	x	x	x	x
TP-Link	TC-7650	400	3.0	x	x	x	x	x
ARRIS SURFboard	SBV2402	400	3.0	x	x	x	2	x
NETGEAR	C6230	300	3.0	AC1200	x	2	x	1
ARRIS SURFboard	SBG10	300	3.0	AC1600	x	2	x	x
Linksys	CG6350	400	3.0	x	x	x	x	x
Linksys	CM3016	300	3.0	x	x	x	x	x
Motorola	MG7550	300	3.0	AC1900	x	4	x	x
NETGEAR	CM500V	300	3.0	x	x	x	2	x
NETGEAR	C6250	300	3.0	AC1600	x	2	x	x
SMC	D3CM1604	300	3.0	x	x	x	x	x
TP-Link	CR700	300	3.0	AC1750	x	4	x	2
ARRIS SURFboard	SBG6950AC2	300	3.0	AC1900	x	4	x	1
NETGEAR	CM500	300	3.0	x	x	x	x	x
TP-Link	TC7620	300	3.0	x	x	x	x	x
NETGEAR	C6300 v1-v2	300	3.0	x	x	x	x	x
TP-Link	CR500	300	3.0	AC1200	x	4	x	x
ARRIS SURFboard	SBG6900AC	300	3.0	AC1900	x	4	x	2
D-Link	DCM301	100	3.0	x	x	x	x	x
ARRIS SURFboard	TM822R	100	3.0	x	x	x	2	x
NETGEAR	CM400	100	3.0	x	x	x	x	x
NETGEAR	C6220	100	3.0	AC1200	x	2	x	1
ARRIS SURFboard	TM822G	100	3.0	x	x	x	1	x
TP-Link	TC-7610	100	3.0	x	x	x	x	x
ARRIS SURFboard	SBG6700AC	100	3.0	AC1600	x	2	x	x
Motorola	MB7220	100	3.0	x	x	x	x	x
ARRIS SURFboard	SBG6782AC	100	3.0	AC1750	x	4	x	x
Cisco	DPC3008	100	3.0	x	x	x	x	x

APPROVEDMODEMS.COM 02/17/2021

Xfinity Internet Plans & Modem Requirements

Performance Starter (25 Mbps) & Performance (100 Mbps)
- Require a modem with at least 8×4 channel bonding
Blast! (200 Mbps) & Extreme (300 Mbps)
- Compatible modem must be at least a 16×4 modem
Extreme Pro (600 Mbps)
- Must use at least a 24×8 bonded modem
XFINITY Gig & Gigabit Pro
- Must use a DOCSIS 3.1 modem

Top XFINITY Cable Modems

XFINITY Modem Router, a.k.a. Gateways

XFINITY gateways, most often referred to as a modem router combo, have a built-in router. Therefore, you will not need a separate router. The advantages of a gateway are that they are easier to set up, take up less space, and not so many messy wires.

ARRIS SURFboard SBG10 WiFi Cable Modem

ARRIS SBG10 WiFi AC1600 Modem

The ARRIS SBG10 is a DOCSIS 3.0 cable modem with a built-in WiFi router. This is the best cable modem/router combo because it is cheaper than most other brands’ equivalent products. Also, It is made by the best selling cable modem brand. The SBG10 is compatible with most ISP plans up to 300 Mbps […]

Motorola MG7550 WiFi Cable Modem

Motorola MG7550 WiFi Cable Modem

The Motorola MG7550 is one of the latest released WiFi cable modems. It features 16 download channels and 4 up. This cable modem can deliver speeds up to 686 Mbps with a built-in AC1900 Wi-Fi Gigabit Router with Power Boost. The MG7550 is certified by a number of leading cable service providers including Comcast […]

Motorola MG7700 24×8 Cable Modem Plus AC1900 Dual Band WiFi Gigabit Router with Power Boost (ad)

Amazon.com: Fast 24×8 DOCSIS 3.0 cable Modem Plus a built-in AC1900 Dual band (2.4GHz and 5GHz) Wi-Fi Gigabit Router with four Gigabit (GigE) Ethernet ports, power boost Wi-Fi amplifiers, firewall security, and more. The maximum modem speed is 1000 Mbps, supporting service speeds up to 650. Amazon.com

NETGEAR orbi CBR750 CBK752

NETGEAR Orbi CBR750 / CBK752 WiFi Modem

The new NETGEAR Orbi CBR750 / CBK752 has a WiFi 6 built-in router, also known as 802.11AX wireless. WiFi 6 is the latest generation of in-home WiFi that is 4x faster than the most commonly used today, wireless AC. However, with Netgear leading the way with WiFi 6 cable modems and routers, 802.11AX will […]

DOCSIS 3.1 Gigabit Modems

All of these modems are DOCSIS 3.1. Some have WiFi capabilities and others do not. The same goes for voice capabilities. All current 3.1 modems are backward compatible with 3.0.

NETGEAR – Understanding DOCSIS 3.1 & WiFi-6

Arris SBG8300 DOCSIS 3.1 WiFi Cable Modem

ARRIS SBG8300 DOCSIS 3.1 WiFi Cable Modem

The ARRIS SBG8300 is one of the latest DOCSIS 3.1 cable modems released in the SURFboard line. The SBG8300 is compatible with Comcast XFINITY, Charter Spectrum, and Cox Communications. The main difference between the SBG8300 and all the other ARRIS modems is that it is DOCSIS 3.1 compliant. The ARRIS SBG8300 can handle speeds […]

Motorola MG8702 XFINITY 3.1 Modem Router Combo

The latest release from Motorola in the line of cable modem router combos is the Motorola MG8702. As with most other new releases, the MG8702 is a DOCSIS 3.1 modem. It also features a built-in AC3200 WiFi Router. With that said, it will not feature the newest WiFi 6 (802.11AX) standard. Don’t get me wrong, […]

Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit(ad)

Buy Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black: Modems – Amazon.com ✓ FREE DELIVERY possible on eligible purchases

NETGEAR Nighthawk CM1150V XFINITY Voice Modem

The NETGEAR Nighthawk CM1150V XFINITY Voice cable modem was made only for Comcast customers. The CM1150V provides for speeds up to 2 Gbps, making it future proof for many years to come. Also, it is backward compatible with DOCSIS 3.0. Furthermore, the Netgear CM1150V can support 2 separate phone lines and many calling features […]

Comcast Voice Modems

Voice modems, a.k.a eMTA, are needed if you have XFINITY home phone service, not mobile service. If you have Double Play or Triple Play, chances are you are paying for this service, especially if you have the Triple Play package.

CM500V XFINITY Voice Modem

NETGEAR CM500V XFINITY Voice Cable Modem

NETGEAR CM500V Voice Cable Modem

The Netgear CM500V XFINITY gateway is exclusively for Comcast customers with voice services. It is not compatible with any other cable ISPs. The CM500V is a cable modem with 16×4 channel bonding making it faster than other cheaper modems.

NETGEAR Nighthawk CM1150V XFINITY Voice Modem

The NETGEAR Nighthawk CM1150V XFINITY Voice cable modem was made only for Comcast customers. The CM1150V provides for speeds up to 2 Gbps, making it future proof for many years to come. Also, it is backward compatible with DOCSIS 3.0. Furthermore, the Netgear CM1150V can support 2 separate phone lines and many calling features […]

Motorola MT7711 XFINITY Voice Cable Modem

Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice (ad)

Built-in AC1900 Wireless Router – This 24X8 DOCSIS 3.0 cable modem comes integrated with an AC1900 Dual-Band (2.4GHz and 5GHz) Gigabit Router and two Xfinity Voice-compatible phone ports for ultimate range and performance. This product is approved by Comcast for Xfinity Internet and Voice, and recommended by Comcast for Xfinity Internet service speeds up to 600 Mbps. AMAZON

Frequently Asked Questions

Other XFINITY Accessories

XFINITY Comcast XR15 Voice Control Remote for X1 Xi6 Xi5 XG2 (Backlight)

Remote Case Covers Holder for Xfinity Remote Control

Xfinity Stream Beta – Fire TV

XFINITY xFi Pods

Comcast is the largest cable Internet provider in the USA. The Comcast Corp. has service available in 40 States.

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Comcast Internet Availability Map

For XFINITY Service – Call 1-800-XFINITY or try The XFINITY Assistant

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