The D-Link Xtreme N DWA-556 PCI Express Desktop Adapter is a draft 802.11n wireless client that delivers unrivaled wireless performance for your PCI Express-enabled desktop computer. The PCIe interface provides superior performance over a standard PCI interface. This wireless adapter delivers up to 14x faster speeds1 and 6x farther range1 than 802.11g while staying backward compatible with 802.11g and 802.11b networks. Once connected, you can share a high-speed Internet connection, photos, files, music, videos, printers, and storage. This adapter is designed for use in larger homes and offices, or for users running multiple bandwidth-intensive applications. Main FeaturesManufacturer: D-Link Systems, IncManufacturer Part Number: DWA-556Manufacturer Website Address: www.dlink.comFrequency Band/Bandwidth Details: 2.4 GHz 2.4835 GHz IEEE 802.11b/g ISM Band Transmission Speed: 54Mbps Auto-fallback IEEE 802.11b/g, 6Mbps IEEE 802.11g, 11Mbps Auto-fallback IEEE 802.11b, 1Mbps IEEE 802.11bHost Interface: PCI Express x1Dimensions: 2.7" Height x 4.7" Width x 0.1" ThicknessWeight: 0.31 lb Standard Warranty: 1 Year(s) Limited