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  1. ARRIS - SURFboard 32 x 8 DOCSIS 3.0 Cable Modem - White - Front_Zoom
    Sponsored
    Model: SB6190
    SKU: 4600801
    Your price for this item is $89.99
  2. ARRIS - SURFboard S33 32 x 8 DOCSIS 3.1 Multi-Gig Cable Modem with 2.5 Gbps Ethernet Port - Front_Zoom
    Model: S33
    SKU: 6425831
    Your price for this item is $169.99
  3. ARRIS - SURFboard 32 x 8 DOCSIS 3.0 Cable Modem - White - Front_Zoom
    Model: SB6190
    SKU: 4600801
    Your price for this item is $89.99
  4. NETGEAR - Nighthawk 32 x 8 DOCSIS 3.1 Cable Modem - Black - Front_Zoom
    Model: CM1200-100NAS
    SKU: 6345940
    Your price for this item is $199.99
  5. NETGEAR - Nighthawk AC1900 Router with DOCSIS 3.0 Cable Modem - Black - Front_Zoom
    Model: C7000-100NAS
    SKU: 4403100
    Your price for this item is $189.99
  6. NETGEAR - Nighthawk 32 x 8 DOCSIS 3.1 Cable Modem - Angle_Zoom
    Model: CM2000-100NAS
    SKU: 6425817
    Your price for this item is $249.99
  7. NETGEAR - 16 x 4 DOCSIS 3.0 Cable Modem - Black - Angle_Zoom
    Model: CM500-100NAS
    SKU: 6794125
    Your price for this item is $69.99
  8. ARRIS - SURFboard DOCSIS 3.1 Cable Modem & Dual-Band Wi-Fi Router for Xfinity and Cox service tiers - Black - Front_Zoom
    Model: SBG8300
    SKU: 6341861
    Your price for this item is $299.99
  9. Motorola - Dual-Band AC1900 Router with 16 x 4 DOCSIS 3.0 Cable Modem - Black - Angle_Zoom
    Model: MG7550
    SKU: 5619201
    Your price for this item is $144.99
  10. ARRIS - SURFboard DOCSIS 3.1 Cable Modem for Xfinity Internet & Voice - Black - Front_Zoom
    Model: T25
    SKU: 6379635
    Your price for this item is $225.99
    Save $4
    The previous price was $229.99
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  12. NETGEAR - Dual-Band AC1600 Router with 16 x 4 DOCSIS 3.0 Cable Modem - Black - Front_Zoom
    Model: C6250-100NAS
    SKU: 4562303
    Your price for this item is $159.99
  13. NETGEAR - Dual-Band AC1750 Router with 16 x 4 DOCSIS 3.0 Cable Modem - Black - Angle_Zoom
    Model: C6300-100NAS
    SKU: 4483016
    Your price for this item is $179.99
  14. ARRIS - SURFboard 32 x 8 DOCSIS 3.0 Voice Cable Modem - Black - Front_Zoom
    Model: SBV3202
    SKU: 6317625
    Your price for this item is $141.99
    Save $8
    The previous price was $149.99
  15. Motorola - 16 x 4 DOCSIS 3.0 Cable Modem - Gray - Front_Zoom
    Model: MB7420
    SKU: 5050001
    Your price for this item is $63.99
    Save $16
    The previous price was $79.99
  16. NETGEAR - Nighthawk 32 x 8 DOCSIS 3.1 Voice Cable Modem, Voice support - Black - Front_Zoom
    Model: CM1150V-100NAS
    SKU: 6319962
    Your price for this item is $249.99
  17. Motorola - 24 x 8 DOCSIS 3.0 Cable Modem - Front_Zoom
    Model: MB7621
    SKU: 6251683
    Your price for this item is $79.99
  18. Motorola - 8 x 4 DOCSIS 3.0 Cable Modem - Gray - Front_Zoom
    Model: MB7220
    SKU: 4811800
    Your price for this item is $46.99
  19. NETGEAR - Orbi Tri-Band AC2200 Mesh WiFi System with 32 x 8 DOCSIS 3.0 Cable Modem built-in (2-Pack) - White - Front_Zoom
    Model: CBK40-100NAS
    SKU: 6250962
    Your price for this item is $359.99
  20. NETGEAR - Nighthawk 32 x 8 DOCSIS 3.1 Voice Cable Modem - Angle_Zoom
    Model: CM2050V-100NAS
    SKU: 6425815
    Your price for this item is $299.99

Buying cable modems.

What is a cable modem? 

Cable modems are needed to connect to your TV and internet service provider. As opposed to regular modems, cable modems have a coaxial cable port to connect with the cable input from your wall, as well as ports for Ethernet cables. Since modern data plans can have up to eight downstream channels coming into your home, a coaxial cable modem is an efficient tool in your home’s Wi-Fi network because it’s able to maximize throughput using one big cable instead of individual ones. Best Buy carries a large selection of DOCSIS 3.1 cable modems for you to choose from.

Do I need a new cable modem router? 

Perhaps you already own a cable modem and you’re unsure whether you need to upgrade to a new DOCSIS 3.1 modem for your Wi-Fi network. To give you a clear answer, think about how well your current device is operating and even run an internet speed test to give you a better idea. If your internet speed has slowed, drops off frequently, or has trouble connecting to the internet, a high-performance internet cable modem could improve your experience considerably. Advanced technology DOCSIS 3.1 modems bond multiple data sources together while still accessing the individual channels’ information so that their data loads are balanced more efficiently. Those concerned with saving space and money might choose a cable modem router that combines two devices in one compact unit to ensure there aren’t any delays in receiving and displaying your audiovisual entertainment.

Getting the most out of your DOCSIS 3.1 modem. 

After you’ve chosen the best cable modem for you, schedule a home network setup service with our professional Geek Squad® team, or you can always go the route of DIY if you’re confident in your abilities. To preserve the life of your cable modem, plug it into a surge protector that prevents damage to your electronic devices. Cable modem routers tend to run hot, so it’s a good idea to turn them off when they’re not in use. This helps to save energy as well, which is key for sustainable living. If you don’t want to forget to shut off the power each night, use smart plugs and outlets to do the work for you. Too much humidity in a room can also reduce the longevity of your coaxial cable modem, so consider investing in a smart thermostat to regulate your home’s ideal climate.

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