The DWA-548 Wireless N300 PCIe Desktop Adapter connects your computer to a high-speed wireless network and provides a fast wireless connection with superior reception. Once connected, you can access your network's high-speed Internet connection while also getting secure access to shared photos, files, music, video, printers, and storage. Maximize your wireless performance by connecting this adapter to a Wireless N router and stay connected from virtually anywhere in your home. The DWA-548 is also backward compatible with 802.11g and 802.11b technology. This adapter also supports WPA and WPA2 encryption that allows you to connect securely to a wireless network.