ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem – 10Gbps | Pre-Owned Used – Very Good Boost your home internet with the ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem. Designed for ultra-fast speeds up to 10Gbps and optimized for 4K streaming, gaming, and multi-device households. Features 32 downstream and 8 upstream channels, dual Gigabit Ethernet ports, and compatibility with major U.S. cable providers. This unit is in excellent working condition but comes without the original box, power adapter, or Ethernet cable. Ideal for users who already have compatible accessories or are replacing an existing unit.