Newegg offers the refurbished D-Link 5-Port Gigabit Ethernet Desktop Switch, model no. DGS-1005G, for $9.99 with free shipping. That's tied with our refurb mention from last month and $9 under the lowest total price we could find for a new unit. This 5-port desktop switch includes a power adapter and wall mount kit. Deal ends October 5.
A 90-day warranty applies, but it's unclear who backs it.