Amazon offers Prime members the TRENDnet GREENnet 8-Port Gigabit Ethernet Switch, model no. TEG-S82g, for $19.99 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $8.90.) That's the lowest total price we could find by $8, although we saw if for $2 less last month. This unmanaged switch uses GREENnet technology to automatically adjust power voltage for energy savings.