Netgear N900 Wireless Dual Band USB Adapter (model WNDA4100-100NAS). 

• Ultimate Performance: Provides up to 450+450 Mbps of Wireless-N speed. 

• Dual Band: Operates on both 2.4 GHz and 5 GHz frequencies for less interference and better range. 

• Ideal Usage: Perfect for demanding applications such as 3D HD video streaming, multiple downloads, and online gaming. 

• Security: Features Push 'N' Connect for a secured connection at the push of a button. 

• Compatibility: Works with Windows 7, XP, Vista (32/64-bit) and supports Windows 8.