Turn Leftover Micro-SD Cards Into an SSD
GeekStuff4U is selling a MicroSD to SSD converter, allowing you to use up to 4 MicroSD cards in a RAID array to build your own SSD.
Most of us probably don't, but there may be a few among us who happen to have a bunch of MicroSD cards just lying around, being unused. Well, especially for you folks, GeekStuff4U.com is selling a MicroSD SSD creator kit.
This kit allows you to take up to four SD cards, and put them in a 2.5" form factor converter. Each card can be up to 32 GB in size, allowing for crafted SSDs of up to 128 GB. Undoubtedly, it uses a raid controller inside. Also, according to the site, the gadget can bring Windows Experience Index Score up to 3.6 for storage. Faster cards would obviously lead to higher scores.
The MicroSD SSD Creator Kit retails for a price of $79.56, so it might not be the cheapest way to land yourself a 128 GB SSD, but it is certainly an amusing little trick.

It does not really seem worth it unless you have access to free 32GB class 10 microSD cards.
their 9000 SSD, which accepts SIX SD cards. In
theory enabling one to put six 128 GB cards in and
have a hefty SSD. I have one of these and though
I had high hopes it would work, it did not, at least using
the SDHC cards I put in. Still working on it....the Photofast
SSD/SD is no longer available new...
The SSD's also have better wear leveling and should last longer.
Costs too much, works too slow. Even a $70 500GB HD would be faster and more reliable than this junk.
Might as well just buy a USB 3.0 mem stick and get better performance for the same price, and not have a bulky card converter sitting around.
The problem with SD cards is that they are extremely slow on 4K. Take an SD card and you are probably going to see 0.03 MB/sec at 4K writes. Thats the typical speed of o 1.44MB floppy disk if I am not mistaken. So you are going to have an SSD that at 4K writes will be as fast as a floppy, and if you use many cards maybe as fast as a CDROM drive 1-2X speed, but with at least lower access times.
There are off course some SD cards that write with a few hundred kilobytes at 4K or a couple MBs per second. But don't expect an SSD. Especially at this price the card is useless.