Summary: This thing could not see my network, which is 802.1N 5GHz. Even my smart TV can see this network, along with a couple of iPhones, a couple of iPads, and a desktop workstation. (Though a smart TV from a year back was unable to see the network as well). The D-link support person kind of threw up her hands and said there wasn't anything she could do because all the procedures she was given to follow were designed to fix a problem where the device wasn't working at all,...
Summary: Pro: The device is supported on Debian after installing the firmware-linux-free package which contains the necessary firmware file carl9170-1.fw $ lsusb ID 07d1:3a09 D-Link System DWA-160 802.11abgn Xtreme N Dual Band Adapter(rev.A2) [Atheros AR9170+AR9104] Con: The device is not reliable. The adapter keeps dropping the connection.
Summary: Product installed fine, web browsing speeds and reliability were fine; however, when playing ANY game the ping was a constant yo-yo from 200-700ms. For comparison, I was (and now again am) using a Linksys AE2500 which will occasionally need to be reset when it overheats and drops signal but it never had any ping issues like this. Product support has no answers. Avoid like the plague.
Summary: I cannot really comment on this adapter, the UPS service lost my package. I would just like to comment that 5ghz is generally the band to be on the 2.4ghz is just to slow due to too many devices using it, everything from baby monitors to wireless mouse.