1SaleADay via eBay offers the Alfa USB 802.11g Wireless Network Adapter
, model no. AWUS036H, for $14.99
with free shipping
. That's tied with our October mention for the lowest total price we've seen. (It's a current price low by $6.) It features 1,000mW of power (which gives it a greater range than less powerful devices), a removable 5dBi swivel antenna, support for 64/128-bit WEP, WPA, WPA2, TKIP, and AES encryption, and more.