Entertainment, information and communications products provider Comcast has announced the availability of its Extreme 105 Xfinity Internet service, which allows download speeds of up to 105Mb/s.

Extreme 105 is part of Comcast’s DOCSIS 3.0 technology. The service was first introduced last May and provides download speeds of up to 105Mb/s and 10Mb/s upstream.

The service is priced at an introductory offer of $105 per month which expires in 12 months, after which users will be required to pay $130 per month.

There is a data cap of 250GB per month for residential accounts. Business accounts, which cost more, are unlimited. Users would also have to upgrade their modem as Extreme 105 Xfinity requires DOCSIS 3.0.

The company said Extreme 105 is available in San Francisco, Seattle, Portland, Denver, Chicago, Miami, Washington, D.C., Philadelphia, and most of Boston. It is still unavailable in New York.

Company spokesperson Charlie Douglas said there will be additional cities that will come online in the future.

He said, "Our goal is to continue to introduce 105 to all of the markets where we’ve introduced DOCSIS 3.0 technology."