Comcast tests first multigigabit cable modem

Comcast is now considerably closer to making multigigabit cable internet a reality. The company successfully tested the first 10G modem capable of reaching speeds of several gigabits. The prototype built by Broadcom used the full duplex DOCSIS 4.0 standard to provide upload and download bandwidth of up to 4 Gbps. For context, maintaining this performance would allow you to download all Call of Duty: The Vanguardthe recommended install size for PC (61 GB) in just over two minutes.

Even though this was a lab test, it is still an important step forward. The company previously achieved these speeds using a virtualized system and, as of October 2020, was handling “only” 1.25 Gbps with the new DOCSIS technology. The new format is notable not only for improving downstream speeds, but also for enabling symmetrical downloads and reducing lag.

Telecom has not come up with a timeline as to when you might see DOCSIS 4.0 multigigabit modems ready for the customer. You may have to settle for 2 Gbps service for now. However, the bigger question is whether or not you’ll be able to use a 4Gbps-plus connection anytime soon. You’ll need a quick internet route, of course, but there’s also the matter of Comcast’s data caps. While it’s no surprise that Comcast is raising or even removing caps for multigigabit users, it might be difficult to take advantage of the larger data channel if caps discourage sustained usage.

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