Amazon Warehouse Deals offers Prime members the used Arris SurfBoard DOCSIS 3.0 Cable Modem, model no. SB6141, for $23.67 $24.05 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.71.) That's $2 less than our mention from last month and the lowest total price we've seen for it in any condition. (It's also $11 under the best deal we could find for a refurb elsewhere.) It features support for IPv4 and IPv6 and enhanced network management. Note that it may not be compatible with all service providers.

No warranty information is provided. Additionally, this item is currently out of stock, but can still be ordered at this price with an estimated in-stock date of February 5.