ARRIS T25 Surfboard - DOCSIS 3.1 Cable Modem for xfinity - Black - NEW. The item "ARRIS T25 Surfboard DOCSIS 3.1 Cable Modem for xfinity Black NEW" is in sale since Monday, November 2, 2020. This item is in the category "Computers/Tablets & Networking\Home Networking & Connectivity\Modems". The seller is "centralpennbuyandsell717" and is located in Harrisburg, Pennsylvania. This item can be shipped to United States.