The D-Link Xtreme N Notebook ExpressCard (DWA-643) is a draft 802.11n compliant wireless client for your notebook PC with an available ExpressCard slot. This wireless adapter delivers up to 14x faster speeds and 6x farther range 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, printers, and more. In addition, the ExpressCard interface provides up to 236% faster performance and better reliability than the legacy CardBus interface. Additionally, having an ExpressCard/34 form factor (34mm x75mm), the DWA-643 will fit into any standard ExpressCard slot.