SURFboard S33 DOCSIS 3.1 Cable Modem $199.00 Designed to easily deploy Gigabit+ data services. DOCSIS 3.1 Ultra Fast Cable Modem Your Gigabit home network will be ready with the SURFboard S33. A DOCSIS 3.1 cable modem, capable of download speeds up to 3.5 Gbps the S33 is the... Add to Cart