TP-Link N900 Wireless Dual Band USB Adapter (TL-WDN4200) Wireless N adapter for PCs and laptops Ideal for lag-free HD video streaming and online gaming 900Mbps Wi-Fi speeds with simultaneous 5GHz (450Mbps) and 2.4GHz (450Mbps) bands Compact design and 3ft. cable for easy desktop placement Connects to PCs via USB port WPS button for easy wireless security encryption Support Windows XP/Vista/7/8 (32-bit and 64-bit) Industry-leading 2-year warranty and unlimited 24/7 technical support