Bests & Worsts Reviews from Amazon

This is a slightly more technical review for you folks, and if you're just using this to connect to WiFi, you can safely ignore it. After purchasing this, I found it does not properly work with some Linux setups that were usually guaranteed to work (Kali). After some reaserch, I found that the adapter has two versions - one with an Atheros Chipset, and one with a RealTek Chipset. So far, the only reliable way to tell that I've ascertained is to look at the bottom of the device itself for the FCC number, which is a small sequence of numbers directly above the barcode on the back. If yours reads "TE7WN722NV2", you have the RealTek version 2, which is unusable for some projects. Otherwise, you likely have the superior Atheros version. Another way to tell is, sometimes, next to the S/N on the back, it'll say "v2.1" or something similar. So far I haven't worked out if the FCC number or version is on the box, as I threw that away before realizing this. I'm rating this product two stars for not making it clear that this was something that I needed to worry about. There should be, at least in the description, something saying that this is Version 2 using the RealTek Chipset instead of Atheros. I don't know if they sell the Version 1 at all, but some people I've asked said they received that version, meaning the seller may be just randomly picking between versions 1 and 2 to ship out.