Here is a router that I bought from Ebay for 20 bucks and it seems to be in perfect condition. It is got some really good wifi antennas.
1 Gbps x1 WAN ethernet port.
1 Gbps x4 LAN ethernet port.
3 internal antennas.
x1 USB 3.0 @ 5.0 Gbps for local and remote storage sharing.
x1 USB 2.0 @ 480 Mbps for local printer sharing or could also be used for storage sharing.
2.4 Ghz wifi @ 450 Mbps
5.2 Ghz wifi @ 1300 Mbps
backward compatible wifi