Amazon offers the TP-LINK N600 Dual-Band 802.11n Wireless 4-Port Gigabit Ethernet Router, model no. TL-WDR3600, for $56.57. Clip the $10 off coupon on the product page to drop it to $46.57. With free shipping, that's the lowest total price we could find by $11, although we saw it for $2 less two weeks ago. This dual-band router features five Gigabit ports; two USB ports; simultaneous 2.4GHz and 5GHz frequencies; detachable antennas; and WEP, WPA, WPA2, WPA-PSK, and WPA2-PSK encryption.