This Motorola SURFboard SB5101 DOCSIS 2.0 cable modem is a reliable and efficient option for your internet needs. It is compatible with Comcast and features a single Ethernet (RJ-45) port for connectivity. The modem comes in black and is perfect for home networking and connectivity. With its DOCSIS 2.0 standard, this cable modem ensures fast and stable internet speeds for your online activities. It is a brand new item from Motorola, model SB5101U. The modem also has one LAN port for your convenience. Get this high-quality cable modem for a seamless internet experience.