The ARRIS SURFboard TM822R Docsis 3.0 Voice Cable Modem is a high-speed modem designed for home networking and connectivity. With a maximum downstream data rate of 343 Mbps, this cable modem offers fast and reliable internet access. Featuring Ethernet ports for easy connection, this modem is compatible with Comcast and other carriers. The sleek black design and unlocked features make it a versatile and efficient choice for those looking to upgrade their home network setup.