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expired Posted by nexux • Jul 19, 2021
expired Posted by nexux • Jul 19, 2021

ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem

+ Free Shipping

$170

$200

15% off
Amazon
89 Comments 49,798 Views
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Deal Details
Amazon has ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem for $169.99. Shipping is free.

Best Buy also has ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem for $169.99. Shipping is free.

Thanks to community member nexux for finding this deal.

Product Info:
  • The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network
  • Cable internet service required. Does NOT include Wi-Fi and does not support cable digital voice service.
  • DOCSIS 3.1 Cable Modem approved for cable internet speed plans up to 2.5 Gbps
  • 32 downstream x 8 upstream DOCSIS 3.0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
  • Connects to any existing Wi-Fi router for blazing-fast internet.
  • Compatible with major U.S. Cable Internet Providers including Cox, Spectrum, Xfinity & others.ice.
  • Stop renting your modem and save on monthly modem rental fees!
  • Sleek new, modern design fits nicely into home or office
  • Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers

Editor's Notes

Written by SlickDealio | Staff
  • About the store:
  • About this deal:
    • This price is $30 lower (15% savings) from the list price of $199.99
  • About this product:
    • Rated 4.6 stars out of 5 overall based on 500+ reviews on Amazon

Original Post

Written by nexux
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem for $169.99. Shipping is free.

Best Buy also has ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem for $169.99. Shipping is free.

Thanks to community member nexux for finding this deal.

Product Info:
  • The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network
  • Cable internet service required. Does NOT include Wi-Fi and does not support cable digital voice service.
  • DOCSIS 3.1 Cable Modem approved for cable internet speed plans up to 2.5 Gbps
  • 32 downstream x 8 upstream DOCSIS 3.0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
  • Connects to any existing Wi-Fi router for blazing-fast internet.
  • Compatible with major U.S. Cable Internet Providers including Cox, Spectrum, Xfinity & others.ice.
  • Stop renting your modem and save on monthly modem rental fees!
  • Sleek new, modern design fits nicely into home or office
  • Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers

Editor's Notes

Written by SlickDealio | Staff
  • About the store:
  • About this deal:
    • This price is $30 lower (15% savings) from the list price of $199.99
  • About this product:
    • Rated 4.6 stars out of 5 overall based on 500+ reviews on Amazon

Original Post

Written by nexux

Community Voting

Deal Score
+56
Good Deal
Visit Amazon

Price Intelligence

Model: ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem | Approved for Xfinity, Cox, Spectrum & More | 1 & 2.5 Gbps Ports | 2.5 Gbps Max Internet Speeds | 4 OFDM Channels | 2 Year Warranty

Deal History 

Sort: Most Recent
Post Date Sold By Sale Price Activity
01/22/24Amazon$129 frontpage
59
06/03/23Amazon$145
10
05/23/23Amazon$154
0
03/17/23Amazon$150 frontpage
65
03/12/23Amazon$157
4
11/15/22Amazon$147 frontpage
142
11/19/21Amazon$150
0
09/06/21Amazon$170
1
08/23/21Amazon$149 frontpage
92
08/09/21Amazon$170
5
06/21/21Amazon$149 frontpage
24
Show More

Current Prices

Sort: Lowest to Highest | Last Updated 7/6/2025, 12:43 AM
Sold By Sale Price
Amazon$188.99

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Top Comments

EdEd1190
3232 Posts
777 Reputation
Slick Dealers don't rent from Xfinity. Slick Dealers buy a modem and router. Bite the bullet and buy. Don't rent.
cowbe0x004
578 Posts
113 Reputation
Anyone getting 2.5Gbps speed, I envy you.
riphamilton
1011 Posts
438 Reputation
I've been running one with zero downtime and consistently great speeds for 6 months now. Highly recommend this.

88 Comments

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Jul 23, 2021
59 Posts
Joined Jun 2018
Jul 23, 2021
FrankTheTank78
Jul 23, 2021
59 Posts
I've had this modem with Xfinity gigabit internet service for 6 months with no issues so far. It has been solid.
1
Jul 23, 2021
61 Posts
Joined Apr 2021
Jul 23, 2021
Carlos9977
Jul 23, 2021
61 Posts
This modem is probably fine, but I didn't realize it didn't come with built in wifi. Don't buy this if you need wifi.
2
Jul 23, 2021
1,437 Posts
Joined Sep 2003
Jul 23, 2021
Horace
Jul 23, 2021
1,437 Posts
Quote from Carlos9977 :
This modem is probably fine, but I didn't realize it didn't come with built in wifi. Don't buy this if you need wifi.
What you're looking for is often referred to as a wireless gateway, not a modem. This is a good modem, but it is a modem only, and doesn't have any built in routing, switching, or wireless access point capabilities. Quick explanation here [minim.com].
Jul 23, 2021
474 Posts
Joined Feb 2018
Jul 23, 2021
cattlet1
Jul 23, 2021
474 Posts
Quote from rtomek :
Really? I need uncapped data limits, and for me it's cheaper to bundle that with a rented XB7 than use my own. My customer-owned modem is sitting in a closet.
Same here. Plus is you want VOIP like Ooma, theXfinity gateway includes that as a plugin.
Last edited by cattlet1 July 23, 2021 at 07:35 AM.
Jul 23, 2021
205 Posts
Joined Oct 2011
Jul 23, 2021
koopas
Jul 23, 2021
205 Posts
Quote from EdEd1190 :
Slick Dealers don't rent from Xfinity. Slick Dealers buy a modem and router. Bite the bullet and buy. Don't rent.
When renting the modem gives you unlimited data for cheaper than the price of adding unlimited data, then renting is indeed a Slick Deal.
Jul 23, 2021
26 Posts
Joined Mar 2008
Jul 23, 2021
Roocer
Jul 23, 2021
26 Posts
Quote from WhatIsSlicking :
Is this worth it to avoid $12 monthly model rental charge ?

This is 170 and tax so about 185
It would take 15.5 months to break even.

For optimum
If all of the following for you are true:
  1. There is a new modem or new modem technology that comes out every two year,
  2. You are the type of person that will buy the newest modem every two years,
  3. Your $12 rental charge will give you the newest modem every two year,
If all of the above are true for you, then no, buying this modem will not be worth it for you and renting will be better.

Alternatively, if you plan to stop using cable internet in 16 months and after that will no longer need a cable modem, then yes renting will also be better for you in this situation.
Jul 23, 2021
2,411 Posts
Joined Oct 2012
Jul 23, 2021
WhatIsSlicking
Jul 23, 2021
2,411 Posts
Quote from Roocer :
If all of the following for you are true:
  1. There is a new modem or new modem technology that comes out every two year,
  2. You are the type of person that will buy the newest modem every two years,
  3. Your $12 rental charge will give you the newest modem every two year,
If all of the above are true for you, then no, buying this modem will not be worth it for you and renting will be better.

Alternatively, if you plan to stop using cable internet in 16 months and after that will no longer need a cable modem, then yes renting will also be better for you in this situation.
Thanks but I assume this is very high end modem and I could use something cheaper as an alternative

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Jul 23, 2021
5 Posts
Joined Nov 2019
Jul 23, 2021
IndigoNest157
Jul 23, 2021
5 Posts
Is this overkill for a regular home spectrum connection so I don't have to rent their modem? Just casual internet and streaming tv. I have separate wifi router. If not, anyone have a good cheap recommendation?
Last edited by IndigoNest157 July 23, 2021 at 01:56 PM.
Jul 25, 2021
19 Posts
Joined Apr 2019
Jul 25, 2021
kd2000
Jul 25, 2021
19 Posts
All these high end routers are useless when cable internet companies are limiting upload speed to 5 or 10 mbs only.
3
Jul 25, 2021
19 Posts
Joined Apr 2019
Jul 25, 2021
kd2000
Jul 25, 2021
19 Posts
Quote from WhatIsSlicking :
Is this worth it to avoid $12 monthly model rental charge ?

This is 170 and tax so about 185
It would take 15.5 months to break even.

For optimum
Buy a used cable modem for $20. Even Xfinity 400mbs plan only gives you upload speed of 10mbs.
1
Jul 25, 2021
1,437 Posts
Joined Sep 2003
Jul 25, 2021
Horace
Jul 25, 2021
1,437 Posts
Quote from kd2000 :
All these high end routers are useless when cable internet companies are limiting upload speed to 5 or 10 mbs only.
Good thing this a modem, not a router then.
Jul 26, 2021
564 Posts
Joined Nov 2010
Jul 26, 2021
Pratticus
Jul 26, 2021
564 Posts
I've had an SB8200 for a few years now. Comcast tells me I have up to 1.2Gbps down but I've never seen it. I test on Ookla, speedof.me, and the Xfinity app and it bounces between a reported 400Mbps to 840Mbps. This is on a *wired* connection through an ASUS RT-AC68R router.

Would this modem increase my throughput? If not, any comments on how to get above 840 Mbps on a purported 1.2 Gbps line?

TIA.
Jul 26, 2021
1,437 Posts
Joined Sep 2003
Jul 26, 2021
Horace
Jul 26, 2021
1,437 Posts
Quote from Pratticus :
I've had an SB8200 for a few years now. Comcast tells me I have up to 1.2Gbps down but I've never seen it. I test on Ookla, speedof.me, and the Xfinity app and it bounces between a reported 400Mbps to 840Mbps. This is on a *wired* connection through an ASUS RT-AC68R router.

Would this modem increase my throughput? If not, any comments on how to get above 840 Mbps on a purported 1.2 Gbps line?

TIA.
800-950Mb/s is about what you should expect from your setup under ideal conditions, so 840Mbs isn't surprising.

Your ISP providing a 1.2Gbs connection doesn't necessarily mean you will be able to see that speed on a single client. With your current setup, everything you have is connected at 'only' 1Gb/s, so it will be impossible for you to see anything above that. Your modem has a 1Gb/s connection to your ISP (because it only has a 1Gb port). Your router has a 1Gb/s connection to the modem (because the modem and router only have 1Gb ports). Your computer has a 1Gb/s connection to the router/switch (because the router and [I'm assuming] computer only have 1Gb ports).

Think of it this way: just because you have a 100A electrical service at your house doesn't mean you can just plug something in to an outlet in the bathroom and pull 100A. You would need to have the proper panel/subpanel, breaker, receptacle, and cable connecting everything.

If you want to be able to pull 1.2Gb/s from your ISP (split among all of your connected devices), you will need to upgrade both your modem and router. If you want to see 1.2Gbs from a single client (like you were trying to test), you will need to upgrade the modem, router, and the Ethernet adapter in the client.
Last edited by Horace July 26, 2021 at 08:05 AM.

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