The D-Link Wireless N USB Adapter (DWA-130) provides a better wireless signal for your computer. It’s easy to use and appropriate for activities like transferring files, browsing the Internet and downloading music. It connects a desktop or notebook PC with ease. With dimensions: 0.2” x 3.5” x 1.0” (W x D x H) and weight: 0.01 lbs., this USB adapter is convenient for everyday use. In addition, DWA-130 Adapter uses draft 802.11n technology.