Newegg offers the TP-LINK 802.11n N300 High Gain Wireless USB 2.0 Adapter, model no. TL-WN822N, for $9.99. Apply coupon code "VCO" and use Visa Checkout to cut it to $8.99. With free shipping, that's $6 under our mention from a month ago and the lowest total price we've seen. (It's a current price low by $10.) It features dual 3dBi omni-directional antennas, a maximum data transfer rate of 300Mbps, and 64-bit/128-bit/152-bit WEP/WPA/WPA2/PSK support. Deal ends August 13.

Note that the above Visa Checkout discount can only be used once per account.