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

Modem list updated November 2018. Prices updated every hour.
Below are all the modems on the Comcast Approved Cable Modem List and that can be bought at Amazon, Walmart or Best Buy. There are over 70 different modems on that list and we've gone through all of them to find the ones that can be purchased at major retailers.

If you're paying $11 a month to rent a modem from Comcast, that's $132 a year or $630 over 5 years. You can buy a new one that will pay for itself in less than six months. Its easy to install. Just hookup modem, open web browser on attached computer and follow the on-screen instructions.

Comcast / Xfinity Triple Play or Voice customers: The modems listed immediately below will not work if you have Comcast/Xfinity Voice or Triple Play. To see modems that will work, read this: Comcast Voice Modems


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: Economy, Performance, Blast and Extreme. However, in order to maximize your internet speed, customers with 100 Mbps plans should buy a modem with at least 8 downstream channels. For 250 Mbps plans, buy a modem with at least 16 downstream channels. For Gigabit service (1000 Mbps), buy either the Arris SB8200, Motorola MB8600, Netgear C7800 or Netgear CM1000, which are DOCSIS 3.1 modems.

Comcast Business Class Customers: See our Every Comcast Approved Modem for Business page to find compatible modems.

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$38.97
Amazon
$15.79
Amazon
N/AN/A#48ARRIS SB6121 SpecsCompare (up to 4 modems)
4.5/5 (8,722 ratings counted at all sellers)
SBG6580ARRIS3.0N3008/4See Price
@Amazon
$22.77
Amazon
N/AN/A#50ARRIS SBG6580 SpecsCompare (up to 4 modems)
3.9/5 (8,991 ratings counted at all sellers)
SB6141ARRIS3.0No8/4$49.99
Amazon
$24.20
Amazon
$49.99
Best Buy
N/A#13ARRIS SB6141 SpecsCompare (up to 4 modems)
4.4/5 (27,661 ratings counted at all sellers)
C3000Netgear3.0N3008/4$89.87
Amazon
$39.95
Amazon
N/AN/A#20Netgear C3000 SpecsCompare (up to 4 modems)
4.0/5 (7,062 ratings counted at all sellers)
C3700Netgear3.0N6008/4$79.99
Amazon
$49.99
Amazon
$82.99
Best Buy
N/A#9Netgear C3700 SpecsCompare (up to 4 modems)
3.7/5 (8,747 ratings counted at all sellers)
CG3000Dv2Netgear3.0N4508/4See Price
@Amazon
$45.00
Amazon
N/AN/A#37Netgear CG3000Dv2 SpecsCompare (up to 4 modems)
3.3/5 (2,038 ratings counted at all sellers)
SB6183ARRIS3.0No16/4See Price
@Amazon
N/A$69.99
Best Buy
$64.99
Walmart
#8ARRIS SB6183 SpecsCompare (up to 4 modems)
4.5/5 (8,115 ratings counted at all sellers)
C6300Netgear3.0AC-175016/4$161.69
Amazon
$79.90
Amazon
$169.99
Best Buy
$189.00
Walmart
#23Netgear C6300 SpecsCompare (up to 4 modems)
4.2/5 (9,884 ratings counted at all sellers)
Potential latency issues. Read more: Puma 6 Chipset
SB6190ARRIS3.0No32/8$80.98
Amazon
$58.36
Amazon
$85.99
Best Buy
$98.00
Walmart
#5ARRIS SB6190 SpecsCompare (up to 4 modems)
4.5/5 (2,903 ratings counted at all sellers)
Potential latency issues. Read more: Puma 6 Chipset
SBG6700ARRIS3.0 AC-16008/4$99.00
Amazon
$70.00
Amazon
$99.99
Best Buy
N/A#25ARRIS SBG6700 SpecsCompare (up to 4 modems)
4.3/5 (8,450 ratings counted at all sellers)
SBG6900ARRIS3.0 AC-190016/4$159.00
Amazon
$105.99
Amazon
$199.99
Best Buy
N/A#38ARRIS SBG6900 SpecsCompare (up to 4 modems)
4.5/5 (7,661 ratings counted at all sellers)
SB8200ARRIS3.1No32/8$138.99
Amazon
$122.31
Amazon
$189.00
Best Buy
$189.00
Walmart
#1ARRIS SB8200 SpecsCompare (up to 4 modems)
4.0/5 (1,154 ratings counted at all sellers)
SBG7580ARRIS3.0AC-175032/8$169.00
Amazon
$118.79
Amazon
$179.99
Best Buy
N/A#14ARRIS SBG7580 SpecsCompare (up to 4 modems)
3.6/5 (383 ratings counted at all sellers)
CM-16ASUS3.0No16/4$73.99
Amazon
$64.99
Amazon
N/AN/A#27ASUS CM-16 SpecsCompare (up to 4 modems)
3.7/5 (219 ratings counted at all sellers)
CG7500Linksys3.0AC-190024/8$139.67
Amazon
$59.00
Amazon
$199.99
Best Buy
N/A#43Linksys CG7500 SpecsCompare (up to 4 modems)
3.8/5 (5,171 ratings counted at all sellers)
CM3024Linksys3.0No24/8See Price
@Amazon
$34.95
Amazon
$119.99
Best Buy
$91.90
Walmart
#42Linksys CM3024 SpecsCompare (up to 4 modems)
3.9/5 (704 ratings counted at all sellers)
Potential latency issues. Read more: Puma 6 Chipset
CM3016Linksys3.0No16/4$87.99
Amazon
$29.89
Amazon
$89.99
Best Buy
$94.60
Walmart
#47Linksys CM3016 SpecsCompare (up to 4 modems)
3.9/5 (70 ratings counted at all sellers)
Potential latency issues. Read more: Puma 6 Chipset
CM3008Linksys3.0No8/4$39.00
Amazon
$17.99
Amazon
N/A$59.99
Walmart
#30Linksys CM3008 SpecsCompare (up to 4 modems)
3.9/5 (679 ratings counted at all sellers)
MB7420Motorola3.0No16/4$59.00
Amazon
$44.25
Amazon
$63.99
Best Buy
$59.00
Walmart
#12Motorola MB7420 SpecsCompare (up to 4 modems)
4.2/5 (1,914 ratings counted at all sellers)
MG7550Motorola3.0AC-190016/4$169.99
Amazon
$158.09
Amazon
$169.99
Best Buy
$169.99
Walmart
#22Motorola MG7550 SpecsCompare (up to 4 modems)
4.3/5 (1,627 ratings counted at all sellers)
MG7540Motorola3.0AC-160016/4$129.98
Amazon
$120.88
Amazon
$129.99
Best Buy
$129.99
Walmart
#2Motorola MG7540 SpecsCompare (up to 4 modems)
4.1/5 (964 ratings counted at all sellers)
MB7220Motorola3.0No8/4See Price
@Amazon
N/A$39.99
Best Buy
$49.97
Walmart
#52Motorola MB7220 SpecsCompare (up to 4 modems)
4.5/5 (843 ratings counted at all sellers)
MG7310Motorola3.0N3008/4See Price
@Amazon
$89.95
Amazon
N/AN/A#46Motorola MG7310 SpecsCompare (up to 4 modems)
3.5/5 (443 ratings counted at all sellers)
MG7315Motorola3.0N4508/4$99.99
Amazon
$92.99
Amazon
$99.99
Best Buy
N/A#10Motorola MG7315 SpecsCompare (up to 4 modems)
4.2/5 (1,581 ratings counted at all sellers)
C7800Netgear3.1AC-320032/8$340.00
Amazon
$299.99
Amazon
$349.99
Best Buy
N/A#16Netgear C7800 SpecsCompare (up to 4 modems)
4.0/5 (219 ratings counted at all sellers)
CM1000Netgear3.1No32/8$165.99
Amazon
$146.07
Amazon
$165.99
Best Buy
N/A#15Netgear CM1000 SpecsCompare (up to 4 modems)
4.3/5 (3,022 ratings counted at all sellers)
CM700Netgear3.0No32/8See Price
@Amazon
$94.00
Amazon
$103.99
Best Buy
$99.99
Walmart
#31Netgear CM700 SpecsCompare (up to 4 modems)
4.2/5 (2,630 ratings counted at all sellers)
Potential latency issues. Read more: Puma 6 Chipset
C7000Netgear3.0AC-190024/8$179.99
Amazon
$155.95
Amazon
$175.99
Best Buy
$179.99
Walmart
#7Netgear C7000 SpecsCompare (up to 4 modems)
4.2/5 (9,925 ratings counted at all sellers)
CM600Netgear3.0No24/8$89.99
Amazon
$74.74
Amazon
$89.99
Best Buy
$89.99
Walmart
#45Netgear 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
$74.99
Best Buy
$74.99
Walmart
#3Netgear CM500 SpecsCompare (up to 4 modems)
4.2/5 (6,672 ratings counted at all sellers)
C6250Netgear3.0AC-160016/4$129.99
Amazon
$85.00
Amazon
$159.99
Best Buy
N/A#28Netgear C6250 SpecsCompare (up to 4 modems)
3.9/5 (6,371 ratings counted at all sellers)
CM400Netgear3.0No8/4$49.99
Amazon
$29.99
Amazon
$63.99
Best Buy
$59.00
Walmart
#18Netgear CM400 SpecsCompare (up to 4 modems)
4.2/5 (2,499 ratings counted at all sellers)
C6220Netgear3.0AC-12008/4$136.99
Amazon
$110.84
Amazon
$139.99
Best Buy
$139.00
Walmart
#36Netgear C6220 SpecsCompare (up to 4 modems)
4.1/5 (2,462 ratings counted at all sellers)
D3CM1604SMC3.0No16/4$45.99
Amazon
$29.50
Amazon
N/AN/A#53SMC D3CM1604 SpecsCompare (up to 4 modems)
3.7/5 (164 ratings counted at all sellers)
CR1900TP-Link3.0AC-190024/8$186.18
Amazon
N/AN/AN/A#33TP-Link CR1900 SpecsCompare (up to 4 modems)
3.6/5 (35 ratings counted at all sellers)
TC-7650TP-Link3.0No24/8$90.00
Amazon
$64.99
Amazon
N/A$90.00
Walmart
#32TP-Link TC-7650 SpecsCompare (up to 4 modems)
3.9/5 (225 ratings counted at all sellers)
CR700TP-Link3.0AC-175016/4$99.99
Amazon
$79.95
Amazon
$159.99
Best Buy
$159.99
Walmart
#19TP-Link CR700 SpecsCompare (up to 4 modems)
3.4/5 (763 ratings counted at all sellers)
TC-7620TP-Link3.0No16/4$59.99
Amazon
$89.99
Amazon
N/A$74.25
Walmart
#24TP-Link TC-7620 SpecsCompare (up to 4 modems)
4.1/5 (591 ratings counted at all sellers)
CR500TP-Link3.0AC-120016/4$109.99
Amazon
N/AN/A$115.00
Walmart
#29TP-Link CR500 SpecsCompare (up to 4 modems)
4.1/5 (591 ratings counted at all sellers)
TC-7610TP-Link3.0No8/4See Price
@Amazon
N/AN/AN/A#35TP-Link TC-7610 SpecsCompare (up to 4 modems)
4.1/5 (1,305 ratings counted at all sellers)
TC-W7960TP-Link3.0N3008/4$74.99
Amazon
$53.00
Amazon
N/A$79.99
Walmart
#39TP-Link TC-W7960 SpecsCompare (up to 4 modems)
3.0/5 (1,217 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)
5345Zoom3.0No8/4$149.99
Amazon
$69.99
Amazon
N/AN/A#49Zoom 5345 SpecsCompare (up to 4 modems)
4.3/5 (349 ratings counted at all sellers)
SBG6400ARRIS3.0N3008/4$34.99
Amazon
$25.88
Amazon
N/AN/A#17ARRIS SBG6400 SpecsCompare (up to 4 modems)
2.8/5 (1,814 ratings counted at all sellers)
SBG7400ARRIS3.0AC-235024/8$126.99
Amazon
$110.67
Amazon
$164.99
Best Buy
$209.99
Walmart
#4ARRIS SBG7400 SpecsCompare (up to 4 modems)
4.2/5 (3,874 ratings counted at all sellers)
SBG6950ARRIS3.0AC-190016/4$154.99
Amazon
$84.67
Amazon
$154.99
Best Buy
N/A#21ARRIS SBG6950 SpecsCompare (up to 4 modems)
4.2/5 (4,004 ratings counted at all sellers)
SBG10ARRIS3.0AC-160016/4$119.99
Amazon
$101.69
Amazon
$119.99
Best Buy
N/A#6ARRIS SBG10 SpecsCompare (up to 4 modems)
4.2/5 (3,873 ratings counted at all sellers)
MB8600Motorola3.1No32/8$169.99
Amazon
$143.99
Amazon
$169.99
Best Buy
$169.99
Walmart
#11Motorola MB8600 SpecsCompare (up to 4 modems)
4.0/5 (718 ratings counted at all sellers)
MB7621Motorola3.0No24/8$77.99
Amazon
$68.63
Amazon
$79.99
Best Buy
$77.99
Walmart
#26Motorola MB7621 SpecsCompare (up to 4 modems)
4.2/5 (118 ratings counted at all sellers)
C7500Netgear3.0AC-320024/8$349.99
Amazon
$289.00
Amazon
$349.99
Best Buy
N/A#44Netgear C7500 SpecsCompare (up to 4 modems)
3.8/5 (5,171 ratings counted at all sellers)
CBR40Netgear3.0AC-220032/8$299.99
Amazon
N/AN/AN/A#41Netgear CBR40 SpecsCompare (up to 4 modems)
4.3/5 (94 ratings counted at all sellers)
CM-32ASUS3.0AC-260032/8$209.99
Amazon
$171.50
Amazon
N/AN/A#40ASUS CM-32 SpecsCompare (up to 4 modems)
3.7/5 (219 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