Motorola MB8600 DOCSIS 3.1 Cable Modem. The item "Motorola MB8600 DOCSIS 3.1 Cable Modem" is in sale since Tuesday, March 30, 2021. This item is in the category "Computers/Tablets & Networking\Home Networking & Connectivity\Modems". The seller is "atty1212" and is located in Cleveland, Ohio.