![]() The pictures sit for several months before aging out to even colder storage and overwritten. (We can’t get microSD cards like that at retail, only via high volume purchase contracts specifically for them.) Flash memory can be very cheap if it only needs to survive a few write cycles. Standby power consumption is low, and can wake up far faster than spinning up a standby hard drive platter.Ĭost is likely far less than the back-of-envelope math we’ve done here so far. Example of possible use: Facebook photo gallery. This looks useful for data that is written once and read infrequently, but need to be provided quickly when requested. Posted in computer hacks Tagged sdcard, solid state disk drive, ssd Post navigation Now, if you hacked the board to not use the RAID controller and just used it as a carrier for ten SD cards it would be great for a data logger. Maybe if you were building a custom laptop and wanted it to be somewhat Rube Goldbergesque, this could be a good start. Maybe someone will have an idea in the comments. couldn’t figure out why these boards were made, and neither can we. You can easily get a 1TB SSD for about the same cost. Generously, let’s say you pay $40 each for 128 GB SD cards, that’s $400. We can’t tell if that’s inherent in the design or just a flaw in the execution. Also, although the sequential data performance was adequate, measured the random performance and it was abysmal. Of course, the downside is now if any of the ten cards fail, you’ve failed the whole array since RAID 0 has no redundancy. SD cards are relatively slow, the RAID 0 controller helps with that - at least, it should. SD cards are cheap, we suppose, although the cost of a proper SSD isn’t that much these days, either. So you balance these concerns by making tradeoffs. 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. Besides being amusing, though, it is also a good exercise in design trades. 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. ![]() ![]() Of course, the channel’s tag line is “impractical solutions for improbable problems” but even by his own admission, this is pretty impractical. 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. The title might seem a little harsh, but it is a direct quote from the video by that you can see below. ![]()
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