All Comcast (Xfinity) Approved DOCSIS 3.0 Cable Modems

Modem list updated September 2017. 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 60 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 $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.

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 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 download channels. For 250 Mbps plans, buy a modem with at least 16 download channels. For Gigabit service (1000 Mbps), buy either the Arris SB8200, 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.

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

MFR Model Wifi D/U Chs.Down/Up Channels Amazon New Amazon Used Best Buy Walmart Sales Rank*
ARRIS / MotorolaSB6121No4/4See Price
@Amazon
$22.99
Amazon
N/AN/A#28
ARRIS / MotorolaSBG6580N6008/4$87.99
Amazon
$29.99
Amazon
N/A$95.99
Walmart
#13
ARRIS / MotorolaSB6141No8/4See Price
@Amazon
$38.17
Amazon
$49.99
Best Buy
N/A#2
NetgearC3000N3008/4$89.52
Amazon
$40.00
Amazon
$89.99
Best Buy
$89.97
Walmart
#23
NetgearC3700N6008/4$97.99
Amazon
$48.40
Amazon
$97.99
Best Buy
N/A#18
NetgearCG3000D-v2N4508/4$99.95
Amazon
$24.99
Amazon
N/AN/A#32
ARRIS / MotorolaSB6183No16/4See Price
@Amazon
$43.49
Amazon
$79.99
Best Buy
$69.90
Walmart
#5
NetgearC6300AC-175016/4$153.05
Amazon
$69.00
Amazon
$179.99
Best Buy
$179.99
Walmart
#25
Zoom5354N3008/4$79.43
Amazon
$52.00
Amazon
N/AN/A
ARRIS / MotorolaSB6190No32/8$97.99
Amazon
$61.50
Amazon
$109.99
Best Buy
$97.99
Walmart
#1
ARRISSBG6700AC-16008/4$96.18
Amazon
$71.91
Amazon
$98.99
Best Buy
$99.90
Walmart
#29
ARRISSBG6900AC-190016/4$153.99
Amazon
$89.58
Amazon
$153.99
Best Buy
$159.00
Walmart
#17
ARRISSB8200No32/8$189.00
Amazon
$160.65
Amazon
$189.00
Best Buy
N/A#11
ARRISSBG7580AC-175032/8$189.99
Amazon
$127.99
Amazon
N/AN/A#15
ASUSCM-16No16/4$73.00
Amazon
$57.96
Amazon
N/AN/A
D-LinkDCM301No8/4See Price
@Amazon
$31.77
Amazon
N/AN/A#22
LinksysCG7500AC-190024/8$165.00
Amazon
$124.99
Amazon
N/AN/A
LinksysCM3024No24/8$89.95
Amazon
$75.00
Amazon
N/A$119.97
Walmart
#31
LinksysCM3016No16/4$74.96
Amazon
$61.09
Amazon
N/A$97.96
Walmart
#39
LinksysCM3008No8/4$59.97
Amazon
$24.99
Amazon
N/A$59.97
Walmart
#36
MotorolaMB7420No16/4$69.90
Amazon
$64.96
Amazon
$69.99
Best Buy
N/A#9
MotorolaMG7550AC-190016/4$177.90
Amazon
$151.22
Amazon
N/A$178.00
Walmart
#7
MotorolaMG7540AC-160016/4See Price
@Amazon
$116.99
Amazon
N/AN/A#8
MotorolaMB7220No8/4$53.00
Amazon
$19.95
Amazon
$53.99
Best Buy
$53.00
Walmart
#34
MotorolaMG7310N3008/4See Price
@Amazon
$62.93
Amazon
$69.99
Best Buy
N/A#26
MotorolaMG7315N4508/4$99.99
Amazon
$84.99
Amazon
N/AN/A#6
NetgearC7800AC-320032/8$399.99
Amazon
$350.00
Amazon
N/AN/A#40
NetgearCM1000No32/8$171.99
Amazon
$149.99
Amazon
$171.99
Best Buy
N/A#16
NetgearCM700No32/8$109.99
Amazon
$79.49
Amazon
N/AN/A#3
NetgearC7000-100NASAC-190024/8$199.99
Amazon
$175.00
Amazon
$199.99
Best Buy
N/A#14
NetgearCM600No24/8$127.99
Amazon
$79.99
Amazon
$129.99
Best Buy
$129.99
Walmart
#38
NetgearC7000v2AC-190024/8$199.99
Amazon
$175.00
Amazon
N/AN/A
NetgearCM500-100NASNo16/4$59.99
Amazon
N/A$69.99
Best Buy
$69.99
Walmart
#10
NetgearC6250-100NASAC-160016/4$112.21
Amazon
$80.00
Amazon
$149.99
Best Buy
N/A#35
NetgearCM400No8/4$39.99
Amazon
$33.00
Amazon
$53.99
Best Buy
$59.99
Walmart
#4
NetgearC6220AC-12008/4$111.99
Amazon
$94.97
Amazon
N/AN/A#37
NetgearC3000v2N3008/4$89.52
Amazon
$40.00
Amazon
N/AN/A
SMCD3CM1604No16/4$56.00
Amazon
$27.50
Amazon
N/AN/A
TP-LinkCR1900AC-190024/8See Price
@Amazon
N/AN/AN/A
TP-LinkTC-7650No24/8$84.51
Amazon
$55.49
Amazon
N/AN/A#21
TP-LinkCR700AC-175016/4$139.99
Amazon
$80.00
Amazon
N/A$139.99
Walmart
#30
TP-LinkTC-7620No16/4$64.99
Amazon
$55.85
Amazon
$64.99
Best Buy
$69.94
Walmart
#19
TP-LinkCR500AC-120016/4See Price
@Amazon
$106.97
Amazon
N/AN/A
TP-LinkTC-7610No8/4$39.99
Amazon
$34.00
Amazon
N/AN/A#24
TP-LinkTC-W7960N3008/4$69.98
Amazon
$74.91
Amazon
N/A$79.99
Walmart
#12
Zoom5370No16/4$64.90
Amazon
$51.92
Amazon
N/AN/A#33
Zoom5345No8/4$39.99
Amazon
$40.00
Amazon
N/AN/A#27
ARRISSBG6400N3008/4See Price
@Amazon
$38.60
Amazon
$99.99
Best Buy
N/A#20

*Sales Rank is based on Amazon's best selling cable modem list as of September 16, 2017

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.

Price / Features Comparison

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

Comcast

Comcast Business

Cox

Charter

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

Charter

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