Amazon offers the Netgear ProSafe 5-Port Ethernet Switch, model no. FS105, for $19.99. This $10 mail-in rebate cuts it to $9.99. Plus, Prime members bag free shipping. (Non-members can qualify for free shipping with orders of $35 or more; otherwise, shipping adds $8.71.) That's the lowest total price we could find by $8. It features five Ethernet ports and carries a lifetime warranty. Rebate expires March 28.