The-Toolman, I figured I wasn't the only one on this Forum with one of those models, I'd bet that Viper has also has had one at some point.
When I purchased on Newegg, there was a promo for $12.49 with a limit of one, so purchased there, checked out an email from B&H Photo/Audio, which carries a lot of PC items also, a lot of networking cards, routers & modems. Just so happened they had the same promo (B&H price matches), and the item had free Expedited Shipping, was at my door before the one from Newegg came, although sometimes I'll get a roughed up item from there, so waited & opened that package, all was OK.
Then went to looking for ALFA antennas, and ran across this one at $7.97, the business is an authorized dealer. Here's the antenna I purchased, how I known how great is is, with free shipping and an extra $1.40 discount, would had purchased two.
Originally found the antenna under 'Long Range' WiFi Equipment', which has some other nice wireless hardware, including adapters.
Ny next wireless card will likely come from the choices on this page, from this dealer, they ship extra fast! Most likely, one of the models between the $34.97-$39-97 range. We get what we pay for, and as the distributor stated about one of the 2W models for $24.97, that wattage in itself isn't everything, many factors to consider beyond that spec alone.
If I were still a homeowner, most certainly be in the market for a permanent mount solution, preferably on a flagpole (no, that's no typo). A true flagpole, going as high as the pine trees that lines the street, like many schools & public places has. Expensive yes, yet worth it as a long term investment when living within capture distance of several local businesses with free wireless. There's at least one well rated VPN with Lifetime promo (5 devices), including Linux for $34.99, the service simply must be caught on promo to get the deal. One can combine free wireless connections with a quality VPN & Firewall enabled, that stops the sniffing of traffic & more important, our online credentials.
I can consider one of the flat panel devices that mounts to the power pole, although would be just a little better than a powerful wireless card, and that's if pointing in the right direction. Otherwise, one of the portable models may be better for my usage here, and will be likely the way I go. The one thing that I cannot emphasise enough is that we get what we pay for.
A note on 'AC' choices, these aren't always as good as a N-150/300, as well as N-600/900, the main difference is wide coverage within a specific area (normally one's property), the router itself & adaptors on all computers. These can also connect more devices at once with steady speeds. Yet in a parking lot looking for a free wifi connection, normally most any 'N' spec card will outperform the 'AC' models, because the shortcoming of AC is long distance. Yes it has dense coverage, although only within a specific area, usually one's home/property. If one's looking at a site 3-4 blocks away, forget it, AC wasn't designed nor marketed for that purpose, and where a quality 'N' adapter is the far better choice. Having an adjustable antenna is a plus, and many USB wifi cards has these, including ALFA.
Do your homework, try not to waste cash on $5 'Shell Shockers' or eBay knockoffs, as several of these inferior models can pay for a quality one, that'll be reliable for a long time. Lastly, make sure that the business is an authorized dealer, particularly when purchasing ALFA products. Just because these are shown on Amazon, doesn't imply that all are genuine, many are 3rd party sellers with no support after the sale.
A smart consumer is the one who doesn't 'pull the trigger' on the first product making claims that's bogus, example, wifi adaptors in the US market are regulated, no one can legally sell 5W USB adaptors. It's against the law, for safety reasons to begin with, these must be outdoor mounted if used. Plus there's one channel that's used elsewhere in the World for wifi reserved for government/military use only.
WiFi has been a nice perk since the wireless G spece was released, and continues to grow, as smartphone users can have huge on data caps by disconnecting from their ISP & onto a guest or home network when desired. and will continue to be one for years to come. With the right device (doesn't have to be the most expensive), one can have a fantastic portable experience, even on a tower PC, am typing this post on my 2nd best PC with a PCIe mounted WiFi adapter of the AC1200 spec (only due to bing on promo), and have the Bluetooth 4.0 connected to an empty USB 2.0 port, required for this function. In fact, this was the only model, the lowest one on the chart, that included any BT.
By chance, didn't recall this being an 'AC' connection until looking at my Newegg order history, although knew that the models that were up to 3x the cost didn't include BT.
Note that some of the negative reviewers were posting as such because they didn't read the details, it was stated that an extra USB header was required for BT, and these are the types of reviews of most any product that should be read closely & compared with documentation (may be an online link) & why I purchased this accessory for 'just in case', Was out of stock days after I ordered & before arrival to my home.
The cool thing is not only does it add two USB 2.0 headers, also a pair of internal USB ports for the download, storage & install of drivers for when needed. Although I'll likely install that one on a PC for another for upgrade & purchase this better one instead, has more USB 2.0 headers. Good for MB's that has all USB 3.0 onboard ports, as well as cases with the same. Some devices requires & works best on USB 2.0 ports. Neat accessory for the price, maybe $5 more than the one I purchased above & far newer model.