100% Satisfaction is guaranteed on everything we sell. All items sent out are marked and serial number and/or manufacture number are recorded.The item "ARRIS SURFboard Extreme Speed Cable Modem DOCSIS 3.1 (SB8200) NEW" is in sale since Wednesday, September 2, 2020. This item is in the category "Computers/Tablets & Networking\Home Networking & Connectivity\Modems". The seller is "techmiaonline" and is located in Deer Park, New York. This item can be shipped to United States.