Product Comparison: Motorola MB8600 vs ARRIS SB8200

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General Specifications
About the Product
This Cable Modem supports DOCSIS 3.1, the only cable modem standard that can deliver speeds over 1 Gigabit per second (Gbps). The MB8600 also has 32x8 support for the fastest possible speeds using the older DOCSIS 3.0 standard. The MB8600 provides high-speed Internet for a computer, router, HDTV, game station, or streaming media device. To give simultaneous Internet access to many devices, plug in any router you like.
Introducing the first DOCSIS 3.1 cable modem in the SURFboard lineup. The SURFboard SB8200 is a DOCSIS 3.1 modem – the newest technology being offered by cable providers. It is perfect for things like 4K Ultra-HD video streaming and Virtual Reality gaming! Plus, it has two 1-Gigabit Ethernet ports! Today's connected home demands speeds far more powerful than ever. Power your home network with the SB8200 and get the fastest speeds and most reliable connection to the Internet. Own yours today and stop paying rental fees.
Key Specs
ISP Compatibility
DOCSIS Certification
Downstream Data Speed
3800 Mbps
10000 Mbps
Upstream Data Speed
1000 Mbps
2000 Mbps
What customers say about "Key Specs"
Motorola MB8600 Ultra Fast DOCSIS 3.1 Cable Modem
  • My old modem wasn't slow, but I was shocked to see such a difference when loading websites, youtube, etc. Well worth the buy! I would almost compare this to the difference that the SSD made in computers over old standard hard drives.
  • Comcast recently upgraded their network to DOCSIS 3.1 in the Southwest Washington state area so I replaced my old Arris DOCSIS 3.0 cable modem with this one and immediately noticed a download speed increase to around 200 Mbps from around 120 Mbps!
  • Model is on the approved Comcast/Xfinity equipment list and works great. Compatible with their higher tier speeds at DOCSIS 3.1. No complaints with the product, as it's performed flawlessly during the first week.
  • Easily and quickly setup between my Xfinity cable and TP-Link WiFi router. Went to the Xfinity activate link as described in the documentation and was up and running in a minute or so. My download and upload speeds are about 10% faster now without any change in my plan. Nice!!
  • I'm guessing the 3.1 firmware still is in beta. This modem will lose it's downstream connection for no apparent reason. Hopefully the manufacturer will find out what's causing this and work with Comcast to fix the issue.
ARRIS SB8200 SURFboard DOCSIS 3.1 Cable Modem
  • Ok it has taken 3 days of Comcast phone calls to get this to work. However it now works. Had to pay more to run the 3.1. But it is what it is. This is very fast. I have 352MB download and 45MB upload.
  • I LOOOVE THIS little Beast! Moved to a house and my friend had the slowest package from COX. I decided to upgrade to Ultimate package, bought this guy, and now my Internet speed is 350-380 down, 32 up (I know COX says up to 300, so seeing more than 350 down makes me even happier).
  • Was able to activate with WOW! easily though a quick phone call to their customer service line. Consistently exceeds the 500 Mbps down and 50 Mbps I am paying for.
  • Great modem for 1gigabit service comcast. for self install call rep to get the modem provision and bootfile for correct speed.
  • From Cons, I think it becomes quite Hot, but I keep it separately on the shelf where air flow is quite good, so I hope this heating isn't an issue at all.
Size & Weight
7.875 in.
5.24 in.
2.25 in.
1.65 in.
7.25 in.
5.24 in.
1.1 lbs.
2.1 lbs.
Number of LAN Ports
Wi-Fi Connection
Other Ports
What customers say about "Ports"
Motorola MB8600 Ultra Fast DOCSIS 3.1 Cable Modem
  • Supports bonded (two ethernet cables) connection to ISP if you are lucky enough to actually have Gigabit internet service. One LAN connection only supports up to 960 Mbps or so speeds, so bonded is a plus.
  • 4 LAN ports if you want a direct connection (e.g. if your router doesn't support bonded ethernet– most don't– then you can directly connect to your modem with 4 available ports).
  • Comes with power cable, ethernet cable, velcro tie for cables, and a wrench to tighten the coax cable.
  • It comes with 4 ethernet ports that can be linked together to get up to 4gps of data throughput when cable operator will provide them.
  • Only one port can be used. The rest are for bridging signals once that functionality is available from ISP. You can only use one of the four Ethernet ports on the rear
ARRIS SB8200 SURFboard DOCSIS 3.1 Cable Modem
  • It has 2 Gigabit ports for 2 separate networks (Global IP's) and can utilize link aggregation.
  • The dual LAN ports on the back are cool, but only useful if your provider allows you to use the second one--sadly, Comcast Xfinity does not.
  • I chose this one for the two ports in the back.
  • Very easy to setup and get working. This was purchased because we needed two ports, both of them are gigabit and DOCSIS 3.1 means that we are set for future speed increases.
  • Great cable as described, there are 2 LAN ports on the back..
Wired Speed
1000 Mbps
1000 Mbps
Number of Download Channels
Number of Upload Chanels
Power On/Off, Reset
Fast, easy setup using Quick Start, 5 status-reporting LEDs on the front panel and 2 LEDs for each Ethernet port on the back panel., Ruggedized lightning and power surge circuits protect your investment., Space-saving unit minimizes shelf space and improves cooling for reliable performance.
Supports IPv4 and IPv6 Internet browsing standards, Note, Cox Cable does not support activation of a 2nd Ethernet port., Compatible with major U.S cable providers, Perfect for 4K Ultra-HD Video Streaming and Virtual Reality Gaming
What customers say about "Features"
Motorola MB8600 Ultra Fast DOCSIS 3.1 Cable Modem
  • With this modem, I have DOCSIS 3.1, 8x downstream channels and most importantly, AQM. AQM (Active Queue Management) is needed for high bandwidth connections such as Cable Modem connections.
  • The modem itself is very durable feeling. Setup was a very easy. I'm actual obtaining equal if not better speeds than my previous Netgear model. So definitely a modem I would purchase again.
  • Runs great, uses Broadcom chipset. Small. Reasonably priced. 32x8. Modem admin name is changeable. Can do up to 4 bound ethernet ports for 4gpbs if you can afford it.
  • LEDs are not bright, and only the ethernet one blinks occasionally. Comes with a wrench for tightening coaxial heads.
  • Just that they advertise this to work really easily with XFINITY. At least that was my impression. I still had to contact XFINITY to get this modem set up. Was about an hour total online chat with them.
  • Instructions say to go to but it doesn't load, you actually want /activate. Before realizing this, I tried to activate remotely from my xfinity account and it said activated, but it wasn't.
ARRIS SB8200 SURFboard DOCSIS 3.1 Cable Modem
  • Works easily on Comcast, dual Ethernet, removed my Bufferbloat issues
  • I have had a little over an hour of downtime since I put it in, and that was a scheduled network maintenance outage Downstream is connected 24ch plus an extra 3.1 channel via docsis3.1, upstream 4ch is still 3.0
  • Upgraded old modem using DOCSIS 3.0, with 4 channels to SB8200. Speed doubled at least. No problems found.
  • Expensive, new so may still have outstanding CMTS connection issues (but not for me)
  • Even though it is DOCSYS 3.1 and the description says it works with Xfinity Gigabit, it doesn't. Only 250MB and below.
Warranty / Certifications
Manufacturer Warranty
2 year(s)
2 year(s)
CableLabs®, CE, Comcast XFINITY®, Cox®
CE, FCC, Cox®
Other Information

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