Comcast (Xfinity) Business Approved DOCSIS 3.0 and 3.1 Cable Modems

Modem list updated November 2018. Prices updated every hour.

Below are all the modems on the Comcast Business Internet Approved Cable Modem List which can be bought at Amazon, Walmart or Best Buy. We've gone through all of them to find the ones that can be purchased at major retailers.

If you're paying $10 a month to rent a modem from Comcast, that's $120 a year or $600 over 5 years. You can buy a new one that will pay for itself in less than one year. Its easy to install. Just hookup modem, open web browser on attached computer and follow the on-screen instructions.


Business Class DOCSIS 3.0 and DOCSIS 3.1 Cable Modems

Cable Modem Buying Tips and FAQ's

All of these modems below will work on all speed tiers. However, in order to maximize your internet speed, customers with up to 100 Mbps plans should buy a modem with at least 8 downstream channels. For up to 250 Mbps plans, buy a modem with at least 16 downstream channels. For Gigabit service (1000 Mpbs), buy a DOCSIS 3.1 modem below, with 32 downstream channels.

Comcast / Xfinity Residential customers: See our Comcast Residential Approved Modems page for more options.

Comcast / Xfinity Voice Customers: The modems listed immediately below will not work if you currently have a Comcast/Xfinity Telephone/Data modem. These are data only.

All of these modems are high quality and have pretty much the same features, except for number of downstream channels and those with routers built in. So don't worry too much about deciding which one to buy. Price should be a main factor in your buying decision. Buy one now and start saving those rental fees!

You can click on any column header to sort that column. Also, you can narrow down your search by typing in the search box. For example, if you want to see only modems with Wifi-AC routers, type "ac" in the search box. Clicking on any price takes you to the retailer.

D/U Chs. = Down / Up Channels

Model MFR DOCSIS WiFi D/U Chs.Down/Up Channels Amazon New Amazon Used Best Buy Walmart Sales Rank* Specs: Compare: Our Rating: Avg. rating at all sellers: Our visitors' rating:
SB6121ARRIS3.0No4/4$33.98
Amazon
$14.88
Amazon
N/AN/A#48ARRIS SB6121 SpecsCompare (up to 4 modems)
4.5/5 (8,722 ratings counted at all sellers)
SB6141ARRIS3.0No8/4$44.98
Amazon
$29.70
Amazon
$49.99
Best Buy
N/A#5ARRIS SB6141 SpecsCompare (up to 4 modems)
4.4/5 (27,661 ratings counted at all sellers)
SB6183ARRIS3.0No16/4See Price
@Amazon
N/A$79.99
Best Buy
$69.00
Walmart
#9ARRIS SB6183 SpecsCompare (up to 4 modems)
4.5/5 (8,115 ratings counted at all sellers)
SB6190ARRIS3.0No32/8$87.81
Amazon
$39.93
Amazon
$87.99
Best Buy
$87.81
Walmart
#4ARRIS SB6190 SpecsCompare (up to 4 modems)
4.5/5 (2,903 ratings counted at all sellers)
Potential latency issues. Read more: Puma 6 Chipset
SB8200ARRIS3.1No32/8$167.99
Amazon
$135.50
Amazon
$167.99
Best Buy
$189.00
Walmart
#3ARRIS SB8200 SpecsCompare (up to 4 modems)
4.0/5 (1,154 ratings counted at all sellers)
MB7420Motorola3.0No16/4$59.00
Amazon
$51.92
Amazon
$59.99
Best Buy
$59.00
Walmart
#11Motorola MB7420 SpecsCompare (up to 4 modems)
4.2/5 (1,914 ratings counted at all sellers)
MG7540Motorola3.0AC-160016/4$129.99
Amazon
$125.56
Amazon
$129.99
Best Buy
$129.99
Walmart
#6Motorola MG7540 SpecsCompare (up to 4 modems)
4.1/5 (964 ratings counted at all sellers)
MB7220Motorola3.0No8/4$39.99
Amazon
$89.95
Amazon
$59.99
Best Buy
$31.49
Walmart
#40Motorola MB7220 SpecsCompare (up to 4 modems)
4.5/5 (843 ratings counted at all sellers)
CM1000Netgear3.1No32/8$152.53
Amazon
$134.23
Amazon
$159.99
Best Buy
N/A#13Netgear CM1000 SpecsCompare (up to 4 modems)
4.3/5 (3,022 ratings counted at all sellers)
CM700Netgear3.0No32/8$89.00
Amazon
$82.31
Amazon
$89.99
Best Buy
$89.99
Walmart
#16Netgear CM700 SpecsCompare (up to 4 modems)
4.2/5 (2,630 ratings counted at all sellers)
Potential latency issues. Read more: Puma 6 Chipset
CM600Netgear3.0No24/8See Price
@Amazon
$70.00
Amazon
$79.99
Best Buy
$79.99
Walmart
#46Netgear CM600 SpecsCompare (up to 4 modems)
4.1/5 (5,825 ratings counted at all sellers)
CM500Netgear3.0No16/4$54.99
Amazon
$41.24
Amazon
$56.99
Best Buy
$56.99
Walmart
#1Netgear CM500 SpecsCompare (up to 4 modems)
4.2/5 (6,672 ratings counted at all sellers)
CM400Netgear3.0No8/4$49.99
Amazon
$34.48
Amazon
$59.99
Best Buy
$49.99
Walmart
#26Netgear CM400 SpecsCompare (up to 4 modems)
4.2/5 (2,499 ratings counted at all sellers)
TC-7650TP-Link3.0No24/8$79.99
Amazon
N/AN/A$79.99
Walmart
#19TP-Link TC-7650 SpecsCompare (up to 4 modems)
3.9/5 (225 ratings counted at all sellers)
TC-7620TP-Link3.0No16/4$50.00
Amazon
$36.50
Amazon
N/A$59.99
Walmart
#20TP-Link TC-7620 SpecsCompare (up to 4 modems)
4.1/5 (591 ratings counted at all sellers)
TC-7610TP-Link3.0No8/4$39.98
Amazon
$17.49
Amazon
N/AN/A#12TP-Link TC-7610 SpecsCompare (up to 4 modems)
4.1/5 (1,305 ratings counted at all sellers)
5370Zoom3.0No16/4See Price
@Amazon
N/AN/AN/A#51Zoom 5370 SpecsCompare (up to 4 modems)
4.4/5 (488 ratings counted at all sellers)
5345Zoom3.0No8/4See Price
@Amazon
$45.00
Amazon
N/AN/A#50Zoom 5345 SpecsCompare (up to 4 modems)
4.3/5 (349 ratings counted at all sellers)
MB8600Motorola3.1No32/8$169.99
Amazon
$166.59
Amazon
$169.99
Best Buy
$169.99
Walmart
#7Motorola MB8600 SpecsCompare (up to 4 modems)
4.0/5 (718 ratings counted at all sellers)

*Sales Rank is based on analysis of retailer's sales.

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Price / Features Comparison

See every approved retail modem's price and features in an easily sorted and searchable table:

Comcast

Comcast Business

Cox

Spectrum

Cable ONE

Suddenlink

Time Warner/Road Runner/Bright House


Price / Features Comparison

See every approved retail modem's price and features in an easily sorted and searchable table:

Comcast

Comcast Business

Cox

Spectrum

Cable ONE

Suddenlink

Time Warner/Road Runner/Bright House


Other Helpful Links

Low Cost Cable Phone Service Alternative

Cable Modem Buying Tips and FAQ's