When it comes to approved compatible modems for Comcast, there are a few top choices. Those being the Motorola Arris SB6141, Arris SB6183, and the Arris SB6190. Take a look at the differences.
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Arris SURFboard Modem Differences
You can see the differences in the 3 modems above. The more bonded channels the device has, the stronger the concurrent connections, the higher the capable speed and throughput bandwidth(video explanation). Sure the SB6141 is the cheapest of the modems, but it only has 8 bonded channels and the providers won’t even provision it for over 100Mbps because they know it will have connection issues. In pretty much all cases I would recommend the SB6183 over the SB6141. And even in some cases the SB6190, as it is ready for the next tier of 1 Gigabyte per second speeds that will soon be a normal package.
But what about the similarities? Well, they are all from the same superior family of modems, the Arris Motorola series. They are all DOCSIS 3.0, the current standard in cable internet for all major providers. However they have evolved over time and are capable of higher speeds now as you can see. With the increase in download channels, came the increase in download speeds.
They all have only 4 upstream channels with a max upload speed of 131 Mbps. This will likely not change anytime soon as it is industry standard and home users rarely ever upload from their cable connection.
Arris modem similarities across all 3 modems
- IPv4 and IPv6 compliant
- Current DOCSIS 3.0 Network
- Standard 4 Upstream Channels
- Varying higher incrementals in downstream channels(faster speeds)
- Simple plug and play installation
- Gigabit ethernet port for router connection
These are cable internet modems that work with Comcast, Time Warner Cable, Cox Communications, Charter and so on. However they are cable only modems and do not work as voice modems for services such as Xfinity Triple Play voice package. In that case you can not purchase these DOCSIC 3.0 modems, they are not telephony EMTA modems.
Modem Comparison Summary
It’s obvious by now that the Arris SB6183 is going to be the modem of choice for most people(myself included). It is capable of handling all speed packages and will reign the champion for a long time. However gig speeds are coming and fast so for many the SB6190 is going to be the modem of choice. It is ready for the next generation of internet speeds.