Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | Authorised by Comcast Xfinity, Cox, and Spectrum | for Cable Plans As much as 900 Mbps | DOCSIS 3.0

Product description

The smart choice for your cable Internet service

Eliminate monthly cable modem rental fees – Typically saves 168 dollars per year in Xfinity cable modem rental fees. Actual savings depend on your service provider.

800+ Mbps – Maximum actual Internet download speed

GigE Ethernet port – For a high-speed wired connection to any router, computer, or other Internet-capable device.

Connect any WiFi router you choose

Plugs easily into any router for shared Internet access by all your WiFi and Ethernet-capable devices. This flexible approach lets you pair this cable modem with any router you choose for your WiFi needs, including a mesh router or gaming router.

If the MB7621’s Ethernet port isn’t used for a router, it can plug into a computer, HDTV, game station, or other Ethernet device.

Compatible with Most Cable Providers

Certified by Comcast Xfinity, Cox, Charter Spectrum, and other cable providers.

* Not compatible with Verizon, AT&T, CenturyLink, and other fiber optic, satellite, or DSL services.

Fast Internet Speed

Connects fast with just 3 connections – power, coax cable, and Ethernet.

Supports internet plans with speeds up to 900 Mbps

For other service providers, supported service speeds are similar to Comcast.

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Customer Reviews

4.3 out of 5 stars 4,290

4.4 out of 5 stars 6,879

4.3 out of 5 stars 29,458

4.3 out of 5 stars 29,458

4.3 out of 5 stars 29,458

Price

$52.00$52.00 $89.00$89.00 $69.99$69.99 $179.99$179.99 $119.00$119.00

Product Type (This table only includes cable modems with NO built-in WiFi router)
8×4 Cable Modem 16×4 Cable Modem 24×8 Cable Modem DOCSIS 3.1 plus 32×8 3.0 Cable Modem DOCSIS 3.1 plus 32×8 3.0 Cable Modem

DOCSIS Channel Bonding
8×4 DOCSIS 3.0 16×4 DOCSIS 3.0 24×8 DOCSIS 3.0 DOCSIS 3.1 plus 32×8 DOCSIS 3.0 DOCSIS 3.1 plus 32×8 DOCSIS 3.0

Certified for These Cable Internet Services. Typically Works with Many Others.
Comcast Xfinity, Cox, Spectrum, Sparklight (CableOne), WOW! Comcast Xfinity, Cox, Spectrum, Suddenlink, Sparklight (CableOne) Comcast Xfinity, Cox, Spectrum, Suddenlink, Sparklight (CableOne) Comcast Xfinity, Cox Comcast Xfinity, Cox

Recommended by Comcast Xfinity for Internet Service This Speed Tier or Below
200 Mbps 300 Mbps 800 Mbps 1000 Mbps 2500 Mbps

Maximum Internet Download Speed (Actual speeds are lower)
343 Mbps 686 Mbps 1000+ Mbps 1000+ Mbps 2500 Mbps

Built-in WiFi Router
No No No No No

Gigabit Ethernet Ports
1 1 1 1 1 (2.5 Gbps)

Works With Any WiFi Router That Has an Ethernet WAN port

✓

✓

✓

✓

✓

Telephone Ports
No No No No No

What Modem/Router Product is Most Similar to This Modem-Only Product?
Yes, MG7315 Yes, MG7540 Yes, MG7700 None, but works with any router that has an Ethernet WAN port Yes, MG8702

Model MB7621 is recommended for actual cable Internet service speeds up to 900 Mbps. Wirecutter rates this “the best modem for most people.” A Full-Band Capture Digital Tuner ensures faster, more reliable Internet.
Pairs with any WiFi router – Seamlessly compatible with any WiFi router to connect all your devices. This cable modem does NOT have a built-in wireless router or telephone call capability.
Cost-saving solution: Owning your own modem typically saves the average home $156 per year in monthly rental charges. (Savings are shown for Comcast Xfinity and vary by cable service provider.)