B&H Photo Video offers the Keewifi Kisslink 802.11n Wireless Router / Range Extender 3-Pack for $19.95 with free shipping. That's $6.65 per item, which matches our July mention as the lowest per-unit price we've seen. (It's the best deal we could find for the quantity today by $9.) Features include:
  • data transfer speeds up to 300Mb/s
  • proximity authentication technology
  • Ethernet port
  • WPA and WPA2 encryption