B&H Photo Video offers the Keewifi Kisslink 802.11n Wireless Router / Range Extender 3-Pack for $19.95 with free shipping. That's $6.66 per item, making it the best per-unit price we've seen. (We saw a single one for $10 two weeks ago. It's now $22 less than buying three elsewhere.) It features a signal rate of up to 300Mbps, and WPA, WPA2, WPA-PSK, and WPA-PSK2 encryption.