The title might seem a little harsh, but it is a direct quote from the video by [Linus Tech Tips] that you can see below. He picked up a board that is a RAID 0 controller for up to ten SD cards so you can use them as a conventional SATA SSD. Of course, the channel’s tag line is “impractical solutions for improbable problems” but even by his own admission, this is pretty impractical.
It is odd for us to scoff at any kind of hack, but honestly, it is hard to see the value to this, other than it is amusing to think some factory turned these boards out hoping to make a profit. Besides being amusing, though, it is also a good exercise in design trades. For example, when you design a car, you want it to be safe, but you can’t make the body out of four-inch thick steel because of cost, weight, and fuel consumption. So you balance these concerns by making tradeoffs.