--- product_id: 421343764 title: "(S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty" brand: "arris" price: "7952 kr" currency: NOK in_stock: true reviews_count: 5 url: https://www.desertcart.no/products/421343764-s33-cable-modem-fast-docsis-3-1-multi-gigabit-modem store_origin: NO region: Norway --- # 2.5 Gbps max speed Dual Ethernet ports (2.5 Gbps + 1 Gbps) DOCSIS 3.1 latest tech & security (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty **Brand:** arris **Price:** 7952 kr **Availability:** ✅ In Stock ## Summary > 🚀 Unlock multi-gig speeds and save big—because your network deserves the best! ## Quick Answers - **What is this?** (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty by arris - **How much does it cost?** 7952 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/421343764-s33-cable-modem-fast-docsis-3-1-multi-gigabit-modem) ## Best For - arris enthusiasts ## Why This Product - Trusted arris brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cut Your Cable Costs:** Own your modem and save up to $168/year on rental fees—smart money, smarter internet. - • **Plug & Play Simplicity:** Easy setup with SURFboard Central App—get online fast and secure without hassle. - • **Blazing Multi-Gig Speeds:** Experience ultra-fast 2.5 Gbps downloads and seamless streaming without lag. - • **Dual Ethernet Powerhouse:** Connect multiple devices with 2.5 Gbps and 1 Gbps ports for ultimate network flexibility. - • **Universal ISP Compatibility:** Certified for Comcast Xfinity, Cox, Spectrum & more—future-proof your home network. ## Overview The ARRIS SURFboard S33 is a DOCSIS 3.1 cable modem delivering up to 2.5 Gbps internet speeds via dual Ethernet ports. Compatible with major U.S. cable providers like Comcast Xfinity, Cox, and Spectrum, it offers cutting-edge technology, secure and simple setup, and significant savings by eliminating rental fees. Perfect for professionals demanding fast, reliable, and cost-effective home networking. ## Description Your multi-Gigabit home network will be ready with the SURFboard S33. A DOCSIS 3.1 cable modem. With a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port it's capable of combined download speeds up to 3.5 Gbps. The S33 is the fastest modem in the SURFboard lineup delivering the fastest speeds and the latest technology without the premium rental cost. ## Features - Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below. - Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider). - Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking. - Compatibility: The SURFboard S33 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Blast!/Extreme Pro) and others. It's approved for cable internet speed plans up to 2.5-Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08FMSC5WZ | | Best Sellers Rank | 237,470 in Computers & Accessories (See Top 100 in Computers & Accessories) 108 in Modems | | Box Contents | SURFboard S33 DOCSIS 3.1 Cable Modem - AMZ | | Brand Name | ARRIS | | Colour | Black | | Compatible Devices | Ethernet Connected Devices, Personal Computer, Computer Router | | Customer Reviews | 4.2 4.2 out of 5 stars (3,776) 4.2 out of 5 stars | | Data Transfer Rate | 2.5 Gigabits Per Second | | Internet Service Provider | Comcast Xfinity, Cox, Spectrum | | Item Dimensions L X W X H | 13.1L x 4.6W x 12H centimetres | | Item Type Name | Docsis 3.1 Modem | | Item Weight | 0.9 Pounds | | Manufacturer | CommScope | | Manufacturer Part Number | S33 | | Maximum Downstream Data Transfer Rate | 2.5 Gigabits Per Second | | Maximum Upstream Data Transfer Rate | 1000 Megabits Per Second | | Model Number | S33 | | Modem Type | Cable | | Network Connectivity Technology | Ethernet | | Number Of Ethernet Ports | 2 | | Number Of Items | 1 | | Number Of Ports | 2 | | Unit Count | 1.0 count | | Upc | 612572216804 | ## Product Details - **Brand:** ARRIS - **Compatible devices:** Ethernet Connected Devices, Personal Computer, Computer Router - **Connectivity technology:** Ethernet - **Internet service provider:** Comcast Xfinity, Cox, Spectrum - **Product dimensions:** 13.1L x 4.6W x 12H centimetres ## Images ![(S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty - Image 1](https://m.media-amazon.com/images/I/51C-1U3oAdL.jpg) ## Available Options This product comes in different **Style Name** options. ## Questions & Answers **Q: Can you use both ethernet ports at the exact same time?** A: Depends on your ISP. The company I work for gives you 2 public IP addresses and you can get any combo of 2 computers, 1 computer and one router or 2 routers. You WILL NOT however get full speed on both at the same time but not half either. The modems we use now have only one ethernet port but if you hook up a simple switch you get both IPs through it. But ONLY 2. **Q: Will this support xfinity extreme 1200mbps ? it's not on the supported device list.** A: The Arris S33 is a DOCIS 3.1 capable device 32 x 8 rated for speeds up to 2.5 Gb. While the modem is indeed on Xfinity supported device list (check detailed discussions on dslreports.com), what matters is your router. Ensure you have a router capable of 1+Gb speeds. **Q: Does this modem support snmp?** A: NO. I wish that wasn't the case, but we have no SNMP access. No Arris home modems support user facing SNMP. The cable provider has management, but SNMP isn't exposed to the home network. From Arris: "SNMP (Simple Network Management Protocol) is not supported in Motorola Home Networking products. SNMP is included in Motorola Cable Modem and Home Gateway products, but it is intended for use only by the Cable Provider. There is no direct access to SNMP MIBs for the end-user." **Q: Is one port for the router and the other port can be used for hardwiring a device (computer, etc) directly to modem?** A: The second port can only be used if connected to a separate/different IP. In other words, your ISP will have to give you 2 separate IPs. in order to use the second port. ## Customer Reviews ### ⭐⭐⭐⭐⭐ S33 Modem is great. Xfinity install... BIG pain *by on Reviewed in the United States 6 October 2023* The ARRIS S33 modem was a great upgrade. My prior modem was another ARRIS product and it worked really well. I've had several ARRIS products and all have functioned without issue. The only reason I upgraded was because my old modem was running DOCSIS 3.0 and I wanted to move to DOCSIS 3.1 to get the most out of the 1.2Gps service that I'm paying for. This new S33 modem improved my speeds across all devices by well over 100Mbps. On my M1 iMac I'm now getting 950 Mbps on average. The ARRIS S33 modem is a five star product.I'll summarize the rest of the story so you don't have to read it if you don't want to. You CAN use this modem with your Xfinity service. But you're going to have to work to get it done. The saga below is provided so if you decide to activate this with Xfinity, you'll have an idea of what you'll go through.Now for the ugly: installing this modem with Xfinity service... This is a simple modem. It's designed to be pretty much plug-n-play. Connect coax, plug in power, plug in ethernet cable then activate through Xfinity's app. All the connections on the modem are simple. I went to Xfinity's app to activate and the activation function wouldn't work. It said I had to contact an Xfinity agent directly. So I started the chat with an Xfinity agent. I spent over an hour chatting with the agent as they tried to figure it out. First they said the modem isn't compatible with Xfinity's service. I pointed out it's the recommended modem on Xfinity's website. Then they said they couldn't find the modem in their system so couldn't register it on my account. More haggling. They escalated the issue. Escalation agent had the same problems. After more than an hour they told me I'd have to take the modem to a service center because "the service centers have special tools to scan the modem into the system directly." He assured me no appointment was necessary with my case number. Off to the Xfinity service center I go. I get there and it's a 45 minute wait. The guy says their case number doesn't mean anything to them and I'd still have to wait in line. The guy calls my name and I walk up to the counter. As soon as I lay the modem box on the counter the guy says, "Oh, no. Another one of these." He proceeds to tell me he'll do everything he can to help but they've not been able to do anything with these modems in the service center. He says the service centers don't have any special tools and have to do the same things the online agents do. And he comments that he wishes the online agents wouldn't tell customers what the service centers can do, they're always wrong and just dump problems on the service center. Sure enough, the modem isn't listed in his system either. Nice guy and admits this situation has been causing a terrible customer experience with several customers. He escalates the case to some tech group offsite. He gives me a new case number and says they will have to try to manually configure the modem for my account and I should get a call within an hour. I walked out ticked off and skeptical that I'd get a call or that they'd fix it. 50 minutes later I get a call. A nice guy from the Xfinity tech group tells me he's got it configured and it should install fine. Just have to activate it through the app. I reinstall the modem and go to the Xfinity app to activate. Same error in the app as before and it makes me contact an agent. So I start the chat and explain the situation. The chat agent says to give him a few minutes to review and attempt the activation. He comes back on about 5 minutes later and says it's activated. Sure enough. The modem light is blue and I once again have data flowing. It took somewhere about 4 hours, two chat sessions, a trip to the local service center and referral to some higher Xfinity tech group; but it finally got installed. ### ⭐⭐⭐⭐⭐ So far so good *by on Reviewed in the United States 12 May 2022* So within the past 3 weeks I tried 4 modems.Netgear CM1200 - it kept losing connection several times per hour.Motorola MB8611 - I really wanted to like it but it would randomly reboot about 1x a day. Not acceptable as it would sometimes kick me out of a meeting.Arris SB8200 - worked very well, so well in fact that I decided to spend $50 more and get the...Arris S33 - this one has max speed 2.5Gbps, much higher than the SB8200. So far so good. It runs a little warm and I worry if it will last. The last Surfboard served me well for almost 9 years. So ask me in 2031? One difference: 9 years ago a decent modem cost $80, now almost $200. How much will the next one cost? I better start saving.Oh one more thing: the modem arrived as open box. Everything was opened, plastic bags torn, cables undone and stuffed back into the package. Amazon should not have charged full price. ### ⭐⭐⭐⭐⭐ Powerful Cable Modem to Avoid Paying Rental Fees *by on Reviewed in the United States 27 August 2022* Remember this modem is a modem ONLY and does not have wireless, so Its assumed you will plug it into your own Router that has WiFi. Its also provisioned for specific ISPs, so make sure its compatible with yours before you buy it. This is a well-matched modem that has two ports - one rated at 2.5gbs and the other for 1.0 gbs (in case you get two IP addresses from your ISP and want to run two separate networks at home).I found the "self-install" to be a disappointing feature (didn't work at all), but a simple call to your ISP to swap or establish the MAC address will have you up and running in one phone call. The only other thing I found disappointing was that me (and many others who have this model) cannot access the modem via our router... something I was able to do with my 300mbs Arris modem this one replaced. This modem has the same IP address as my old one did (many cable modems use 192.168.100.1), so it was a bit puzzling as to why I couldn't indirectly access it. If you plug directly into the modem AND power off/power on, you will be able to access the modem. So once you get "inside" the S33 about the only thing you can do is turn the light on the modem off or on (and change the password), so that turned out to be a bit anti-climatic for me. And the password, which is supposed to be "password" turned out to be the last 8 digits of the serial number (something I ended up finding via Google), despite the instructions in the box saying it was "password".But... this is a solid modem and I had my ISP come out to run speed tests to my junction box, inside my house and then on the cable coming FROM the modem (to my router). Since I am paying for 1gb service, I saw the equipment read at 1.2gb, so this modem is the real deal if you're jumping into 1gb or higher service. Arris is the company that took over Motorola, but they still carry the "Surfboard" name on their modems. A little pricey but you won't pay your ISP another dime in modem rental fees if you buy this baby. Stick it behind a UPS and it should last you just about a lifetime. ## Frequently Bought Together - ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Cable Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 2 Year Warranty - (No Built-in Wifi) - Introducing Amazon eero 7 dual-band mesh Wi-Fi 7 router (newest model) - Supports internet plans up to 2.5 Gbps, Coverage up to 6,000 sq. ft., 3-pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/421343764-s33-cable-modem-fast-docsis-3-1-multi-gigabit-modem](https://www.desertcart.no/products/421343764-s33-cable-modem-fast-docsis-3-1-multi-gigabit-modem) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-27*