Can you use both ethernet ports at the exact same time?

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.

Will this support xfinity extreme 1200mbps ? it's not on the supported device list.

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.

Does this modem support snmp?

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."

Is one port for the router and the other port can be used for hardwiring a device (computer, etc) directly to modem?

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.

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ARRIS SURFboard S33 DOCSIS 3.1 Multi‑Gig Cable Modem | 2.5Gbps + 1Gbps Ethernet Ports | Works with Xfinity, Cox, Spectrum | For Cable Internet Plans up to 2.5Gbps | Modem Only, Router Required

Product ID: 267549500

Details

Brand
ARRIS
Compatible Devices
Router Laptop
Connectivity Technology
Ethernet (1 -
Internet service provider
Charter Cox
Product Dimensions
5.25"L x 1.8"W

⚡2.5Gbps multi-Gig speed

📶DOCSIS 3.1 tech for future-proofing

🔌Dual Ethernet ports (2.5Gb + 1Gb)

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Description

🚀 Surf the future with ARRIS S33 — speed, savings, and seamless streaming!

SAVE BIG OWN IT - Ditch monthly rental fees by owning your modem—compatible with top US ISPs like Xfinity, Cox, and Spectrum.
CERTIFIED COMPATIBLE - CableLabs certified to work flawlessly with major cable providers, ensuring reliable, high-speed internet access.
PLUG PLAY SIMPLICITY - Compact design with easy setup—just connect, activate, and pair with your Wi-Fi router for instant connectivity.
BLAZING MULTI GIG SPEEDS - Unlock ultra-fast internet plans up to 2.5Gbps for seamless streaming, gaming, and downloads.
DUAL ETHERNET POWERHOUSE - Connect your high-speed router and an extra device simultaneously with 2.5Gbps and 1Gbps ports.

The ARRIS SURFboard S33 is a DOCSIS 3.1 cable modem designed for multi-Gig internet plans up to 2.5Gbps. Featuring a 2.5Gbps and 1Gbps Ethernet port, it supports ultra-fast wired connections for gaming and streaming. Compatible with major US cable providers like Xfinity, Cox, and Spectrum, it offers a compact, easy-to-setup design that helps users save on rental fees by owning their modem. Note: Requires a separate Wi-Fi router for wireless coverage.

Specifications

ASIN	B08FMSC5WZ
Best Sellers Rank	#3,040 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #21 in Computer Networking Modems
Brand	ARRIS
Built-In Media	Power Supply, Quick Start Guide, SURFboard S33 DOCSIS 3.1 Cable modem
Color	White
Compatible Devices	Router, Personal Computer, Laptop gaming console
Connectivity Technology	Ethernet (1 - 2.5Gb and 1 – 1Gb)
Customer Reviews	4.2 4.2 out of 5 stars (3,988)
Data Transfer Rate	2.5 gigabits_per_second
Internet Service Provider	Charter, Comcast, Cox, Spectrum, Xfinity
Item Dimensions L x W x H	5.25"L x 1.8"W x 5.24"H
Item Type Name	Docsis 3.1 Modem
Item Weight	14.4 ounces
Manufacturer	Vantiva
Maximum Downstream Data Transfer Rate	2500 megabits_per_second
Maximum Upstream Data Transfer Rate	2.5 gigabits_per_second
Mfr Part Number	S33
Model Number	S33
Modem Type	Cable
Number of Ethernet Ports	2
Number of Items	1
Number of Ports	2
UPC	612572216804
Unit Count	1 Count
Warranty Description	2 year limited warranty

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COP 1584091

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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