TRENDnet TEW-652BRP Wireless-N Home Router for $14.99.  Shipping is $1.99 for a total of $16.98 shipped.  Here is a screenshot for your reference.  This wireless router supports 802.11n wireless protocol at up to 300Mbps and has 4 x 100Mbps Ethernet ports for wired connections.  Most places have it for about $29.