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Motorola SB6120 SURFboard DOCSIS 3.0 cable modem - $74.99 at Costco B&M (some locations)

LordKronos 132 April 4, 2011 at 05:12 PM in Tech & Electronics More Costco Wholesale Deals
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Credit goes to user ghichch for making me aware that costco even caries cable modems.

$74.99 is the best price I've seen for these in a while. Even with tax it's about the same or slightly better than the best price at the moment, and then you also get the generous Costco return policy.

These items don't show up online, but it seems it's a new item that only some Costco stores are carrying. If you go to the New in the Warehouse section of costco.com (see link below) and check the locations near you, some may have it listed. For me, it shows up in the Major Appliances section, with costco item number 558599. I tried calling a costco that didn't have it listed, but they didn't carry it and the only stores they said that had it were the same ones that listed it on the website (so it's probably a safe assumption that if it isn't listed for a particular warehouse, they probably don't have it)

http://www.costco.com/inthewareho...cator.aspx
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Last Edited by feeth April 20, 2011 at 06:23 PM
It is only a myth that DOCSIS 3.0 will always increase your internet speeds because even if you have an old DOCSIS 1.1 modem, it will support up to 42mbps downstream and 10mbps upstream. DOCSIS 2.0 modems will increase it to 30mbps upstream. However, most ISP's will cap your cable modem to run at a lower speed than that.

The major difference between DOCSIS 3.0 and DOCSIS 2.0 modem is that 3.0 supports multi channeling. Motorola 6120 supports 4 downstream and 4 upstream channels. That means if there's alot of cable modems running on the same node (like in many urban cities), DOCSIS 2.0 modem performance will suffer because they all share the same channel while DOCSIS 3.0 modems will not suffer as much because it supports multichannel.

How can you test if you might need a DOCSIS 3.0 modem is that you go to speedtest.net and check your network speed at a non-busy time, like 8am in the morning, and compare it to prime time like 8pm. If you are not getting your advertised speed at 8pm and you know that your ISP rolls out DOCSIS 3.0 modems to other customers, DOCSIS 3.0 modem will mostly likely help. If you are getting your advertised speeds at 8pm, getting an DOCSIS 3.0 modem is a waste of money. The only other reason why you want an DOCSIS 3.0 modem is if you are getting an internet service that is more than 45mbps.

PM from Amazon $79.99 to Staples and use a $25 off $75 EJ coupon. Total should be about $60 after tax and cost of coupon. Sounds like the PM is already in the Staples system so the PM should be easy.

146 Comments

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#3
Newegg and Amzy's have it for a few dollars more delivered, but they're both less after tax.
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#4
Thanks -- looks like my Costco has it. Now, to determine if i can sell my old cable modem to justify the purchase of this one... I previously tested a SB6120 -- saw a slight performance improvement, but not necessarily enough to justify the price...
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#5
i assume if it's there that it would fall under the category MAJOR APPLIANCES?
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#6
None showing up in the Chicago burbs.
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#7
Quote from jogalot View Post :
Newegg and Amzy's have it for a few dollars more delivered, but they're both less after tax.
doesn't looks like there's any in my area. i went ahead and ordered from amazon for $84 shipped. they also have the used like new for $79.
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#8
Lots of ISPs are still having compatibility issues with these devices in some areas. Keep your receipt for a year after purchase! they will replace it if it flakes out but these have been by far the most unreliable modem (mostly due to ISP configuration issues) motorola has put out. Go SBG6580 if you have the money, much more stable.
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#9
Quote from jogalot View Post :
Newegg and Amzy's have it for a few dollars more delivered, but they're both less after tax.
Only if you are paying 11.2% or more for tax
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#10
What return policy does this fall under? 90 day?
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#11
Quote from pueblorrado View Post :
Lots of ISPs are still having compatibility issues with these devices in some areas. Keep your receipt for a year after purchase! they will replace it if it flakes out but these have been by far the most unreliable modem (mostly due to ISP configuration issues) motorola has put out. Go SBG6580 if you have the money, much more stable.
Huh? First I'm hearing of this. I know several people, including myself, who have purchased this modem even though we are in areas that do not support docsis 3.0 and can attest to the amazing performance boost that comes with owning one of these things!
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#12
Quote from BlazerX View Post :
What return policy does this fall under? 90 day?
i believe its unlimited
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#13
Quote from zodiac711 View Post :
Thanks -- looks like my Costco has it. Now, to determine if i can sell my old cable modem to justify the purchase of this one... I previously tested a SB6120 -- saw a slight performance improvement, but not necessarily enough to justify the price...
Not sure how long you tested it, but maybe try testing it again. My brother originally saw zero improvement, even complained it was slower. Not sure what happened but shortly after he said he was getting outrageous speeds. We both set up similar systems and both have high praise for this modem. It's popular for a reason.
I saw speed boosts immediately. I'm on Comcast (he's on Time Warner) if that makes a difference. However, I pay for the 12 but get closer to 24. Of course YMMV but wouldn't hurt to try.
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#14
Quote from rr423 View Post :
i believe its unlimited
If this is true great deal!woot
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#15
I thot...return is 90 days on electronics
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