As one of its daily deals, Amazon offers Prime members the Netgear RangeMax Dual Band 802.11n Wireless USB 2.0 Adapter, model no. WNDA3100, for $24.99 with free shipping. (Non-Prime members can spend $35 or more to bag free shipping; otherwise shipping adds $825.) That's the lowest total price we could find by $12. This adapter works on both 2.4GHz and 5GHz networks and features data rates of up to 300Mbps. Deal ends January 9 at 3 am ET.