I haven't been able to find a working, pre-packaged driver for this WiFi stick at all. It seems that this revision (v2) was short-lived and its support was likewise. One can only find support articles for the original device revision ("v1") and the final one (v3), but not for v2. To add insult to injury, all revisions use different chipsets, which makes them totally different devices, not just "revisions", and -- by extension -- their drivers cannot be used interchangeably.
For tl;dr just scroll down to solution.
There are quite a few links on the net that advertise as drivers for this particular model, but none of them worked for me. And in fact, the majority of them were in fact mislabeled v1 or v3 drivers.
Knowing, however, that what really matters is the chipset, I established that this particular device sports a Realtek RTL8187B chipset and went over to Realtek's website (RTL8187B