Head-to-head · Best Standalone DOCSIS 3.1 Cable Modems

Motorola MB8600 vs NETGEAR Nighthawk CM2000

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Motorola MB8600 comes out ahead by a narrow margin (4.3 vs 4.1). The gap is mostly about users upgrading to Gigabit plans who want higher speeds — read the strengths below before deciding.

Higher ratedRanked #2 in Best Standalone DOCSIS 3.1 Cable Modems

Motorola MB8600

4.3

2 sources$199as of Jul 31

The Motorola MB8600 is a DOCSIS 3.1 cable modem rated up to 6Gbps, and setting it up takes little effort. Reviewers liked the simple design and found performance reliable, though several noticed it runs hotter than competitors like the Arris SB8200 because the cooling is less effective. It supports WAN Link Aggregation and works with major ISPs including Comcast Xfinity and Cox. Anyone moving up to a Gigabit plan is the right buyer; anyone who cares about premium build quality or a cool-running box isn't.

Strengths

— Capable of DOCSIS 3.1 standard with 6Gbps top WAN speed
— Simple setup process with clear status lights
— Supports WAN Link Aggregation for improved connection

Watch-outs

— Uses less robust cooling design compared to Arris SB8200
— LED status lights can be too bright and require covering

$199 · Check Price on Amazon Full review →

Ranked #4 in Best Standalone DOCSIS 3.1 Cable Modems

NETGEAR Nighthawk CM2000

4.1

1 source$249.99as of Jul 31

The Netgear CM2000 Nighthawk is a DOCSIS 3.1 cable modem rated to 2.5Gbps, which suits people on faster internet plans. Customer reviews split: some report a real speed jump over older models, others say it performs no better than the CM1200. Setup itself is straightforward, but getting the ISP to activate it can be a fight. Reddit users and Crutchfield reviewers landed on both sides, with the Comcast/Xfinity activation process drawing most of the complaints. It makes sense on a multi-gigabit plan and less so on a standard Gigabit connection.

Strengths

— Supports DOCSIS 3.1 technology for up to 2.5Gbps broadband speeds
— Easy setup process with standard web interface accessible at 192.168.100.1
— Compact design with clear status lights for troubleshooting

Watch-outs

— Does not provide noticeable speed improvements over older CM1200 model for some users
— Requires ISP activation which can be problematic and time-consuming

$249.99 · Check Price on Amazon Full review →

How they stack up

Motorola MB8600

The Motorola MB8600 offers higher WAN speeds up to 6Gbps compared to the Arris SB8200's capped 1Gbps, but it's less reliable in heat management than the Arris SB8200. Unlike the Netgear CM1000, it lacks the build quality and ease of setup, and unlike the Motorola MB8611, it doesn't support 2.5Gbps wired connections.

NETGEAR Nighthawk CM2000

The Netgear CM2000V supports 2.5Gbps speeds, unlike the Arris SB8200 which is capped at 1Gbps, but it's less reliable than the Motorola MB8600 in terms of setup ease. Unlike the Motorola MB8611, it lacks 2.5Gbps Ethernet support, and unlike the Arris SBG8000, it doesn't include integrated Wi-Fi.

Specs side-by-side

Spec	Motorola MB8600	NETGEAR Nighthawk CM2000
Docsis Version	DOCSIS 3.1, DOCSIS 3.0 32×8	DOCSIS 3.1
Max Download Speed	6Gbps	2.5Gbps
Ethernet Ports	1x 1Gbps LAN, 1x Coax	1x 2.5Gbps/1Gbps LAN, 1x Coax
Dimensions	7.25 x 2.25 x 7.88 inches	6.8 x 3.7 x 8.2 in
Weight	1.15 lbs	1.02lb
Upstream Channels	8 upstream channels	8
Downstream Channels	—	32

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