Walmart offers the refurbished Arris SurfBoard DOCSIS 3.0 Cable Modem, model no. SB6141, for $39.99. Opt for in-store pickup to avoid the $4.97 shipping charge. That's $5 under our February mention of a refurb, the best deal now by $13, and the lowest total price we've seen. It features support for IPv4 and IPv6 and enhanced network management. Note that it may not be compatible with all service providers.

A 90-day Walmart warranty applies.