TRENDnet TEG-S50G 5-Port 10/100/1000Mbps Gigabit Ethernet Switch for $14.99 shipped after a $10 rebate.  Here is a screenshot before the rebate for your reference.  Note this is a Gigabit Ethernet switch that goes up to 1000Mbps and not the typical 100Mbps switch.  It is part of TRENDnet's GREENnet line that automatically adjusts power voltage as needed to reduce power usage.  Most places have this 100Mbps switch for about $29.