Asus RT-N12 802.11b/g/n DD-WRT Compatible Wireless Router for $29.99 Shipped

Asus RT-N12 802.11b/g/n Wireless Router for $29.99 shipped after code EMCYTNN52.  Here is a screenshot for your reference.  It features 4 ethernet ports, dual detachable antennas, and is DD-WRT compatible.  Most places have it for about $39.