The TL-WDN4800 450Mbps Wireless N Dual Band PCI Express Adapter by TP-LINK allows you to connect your desktop computer to a wireless network and access a high-speed wireless network connection. Compliant with IEEE 802.11a/b/g/n, the TL-WDN4800 offers the use of the 2.4GHz band or the 5GHz band at speeds of up to 450 Mbps, ideal for users running bandwidth-intensive applications like HD video streaming and multiplayer online gaming.