Nice slim profile with just the black plastic section protruding. I guess this is the aerial part but it also includes two lights that signify power up and contact with the hoast. Good range at my location with contact to a free broadband five houses down the road. Running on IBM Thinkpad G40 with XP but I only loaded the drivers because using the supplied TP-Link Utilities just caused confusion and I eventually gave up after a lot of cursing. In spite of this I give the device 5 Stars because it doesn't protrude very much, has no effect on the PC speed, has a very good range and works so easily when run by Windows. Better than using a USB device by far.