
Netgear CM1000 Black
Score: 80/100
Motorola B12
Score: 83/100Rankings

The Motorola B12 is a compact DOCSIS 3.1 cable modem delivering up to 2.5 Gbps downstream with QoS and LED indicators, perfect for multi-gigabit internet plans. Its single Ethernet port and lack of built-in Wi-Fi mean you'll need an external router for multiple devices. Best suited for users who already own a high-performance router and want a future-proof modem.

The Netgear CM1000 is a DOCSIS 3.1 cable modem delivering up to 1.2 Gbps download speeds and broad compatibility with major US cable providers. Its single 1 Gbps Ethernet port and lack of link-aggregation limit scalability for multi-gigabit plans. Ideal for households on 500 Mbps-1 Gbps cable plans needing a reliable, future-proof modem.
| Attribute | ![]() | ![]() |
|---|---|---|
1,200 Mbps | 2,500 Mbpsbest | |
304 Mbps | 800 Mbpsbest | |
1 portsbest | 1 portsbest | |
0.25 years | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Maximum Download Speed (Mbps) | 1200 Mbps | 2500 Mbps |
Maximum Upload Speed (Mbps) | 304 Mbps | 800 Mbps |
Build & Design(2) | ||
Dimensions (HxWxD) (mm) | 8.8x5.9x5.4 inches mm | 5.5 x 3.5 x 3.5 inches mm |
Form Factor | cable_modem | compact |
General(2) | ||
Provider Compatibility | Xfinity, Comcast, Cox, Spectrum, Mediacom | Comcast Xfinity, Cox (up to 2 Gbps), Spectrum, RCN, Astound |
Warranty (years) (years) | 0.25 years | 2 years |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consider the CM1000 a reliable, future-proof DOCSIS 3.1 modem that delivers solid performance on 1 Gbps cable plans. They commend its straightforward setup, broad ISP compatibility, and elegant design, while noting its single-gigabit Ethernet port and lack of dual ports as drawbacks compared to higher-end competitors.
Everyday users praise the CM1000 for its plug-and-play simplicity, consistent gigabit-class speeds, and long-term stability, often rating it above 4.5 out of 5. Common themes include appreciation for easy ISP activation and noticeable speed improvements, balanced by complaints about its bulkier size and occasional provider-specific activation issues.

Professional reviewers and retail editors consistently praise the Motorola B12 for its fast DOCSIS 3.1 performance, simple plug-and-play installation, and cost-saving potential compared to ISP-rented equipment. They note its future-proof design, broad ISP certification, and QoS capabilities as strong selling points for gamers and streaming enthusiasts.
Everyday consumers echo the professional sentiment, highlighting the modem's easy setup, reliable high-speed connectivity, and compatibility with their existing routers. The limited user feedback shows overwhelmingly positive experiences with few complaints, mainly centered on the lack of built-in Wi-Fi.
“easy to set up! Works well.”
