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Eliminate monthly cable modem rental fees – Typically saves 156 dollars per year in Xfinity cable modem rental fees. Actual savings depend on your service provider.
300+ Mbps – Maximum actual Internet download speed.
GigE Ethernet port – For a high-speed wired connection to any router, computer, or other Internet-capable device.
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 MB7420’s Ethernet port isn’t used for a router, it can plug into a computer, HDTV, game station, or other Ethernet device.
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Compatible with Most Cable ProvidersCertified 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. † This cable modem does not have telephone jacks for the support of voice calls. |
Fast Internet SpeedFor other service providers, supported service speeds are similar to Comcast. |
Easy SetupConnects fast with just 3 connections – power, coax cable, and Ethernet. |
MB7220 | MB7420 | MB7621 | MB8600 | |
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Customer Reviews |
4.3 out of 5 stars
4,311
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4.4 out of 5 stars
6,313
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4.4 out of 5 stars
28,887
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4.4 out of 5 stars
28,887
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Price | $89.99$89.99 | $68.14$68.14 | $87.29$87.29 | $145.00$145.00 |
Product Type (This table only includes cable modems with NO built-in WiFi router) | 8x4 Cable Modem | 16x4 Cable Modem | 24x8 Cable Modem | DOCSIS 3.1 plus 32x8 3.0 Cable Modem |
DOCSIS Channel Bonding | 8x4 DOCSIS 3.0 | 16x4 DOCSIS 3.0 | 24x8 DOCSIS 3.0 | DOCSIS 3.1 plus 32x8 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 |
Recommended by Comcast Xfinity for Internet Service This Speed Tier or Below | 200 Mbps | 300 Mbps | 600 Mbps | 1000 Mbps |
Maximum Internet Download Speed (Actual speeds are lower) | 343 Mbps | 686 Mbps | 1000+ Mbps | 6000 Mbps |
Built-in WiFi Router | No | No | No | No |
Gigabit Ethernet Ports | 1 | 1 | 1 | 1 |
Works With Any WiFi Router That Has an Ethernet WAN port | ✓ | ✓ | ✓ | ✓ |
Telephone Ports | No | No | No | No |
What Modem/Router Product is Most Similar to This Modem-Only Product? | Yes, MG7315 (8x4 Cable Modem plus N450 WiFi Router) | Yes, MG7540 (16x4 Cable Modem plus AC1600 WiFi Router) or MG7550 (16x4 Cable Modem plus AC1900 WiFi Router) | Yes, MG7700 (24x8 Cable Modem plus AC1900 WiFi Router) or MT7711 (24x8 Cable Modem plus AC1900 WiFi Router plus 2 Phone Lines) | None, but works with any router that has an Ethernet WAN port |