Testing and Final Thoughts
You won't see higher SSD performance with the Icy Dock flexiDock MB524SP-B. The important part is you also will not lose performance with this product. Like every other Icy Dock product I've tested, the simple data path for the data signal doesn't degrade performance. We can't say that about every product that sits between the data cable and the data source (the drive).
With rotating media, hard disk drives, it is possible to see a performance improvement under certain conditions. If you simply place a HDD on your case, the desk or some hang it from the cable, the drive will vibrate. The vibration will decrease the drive's performance by a measurable amount. The flexiDock's flat plane spring keeps the drive from vibrating around and gives it a stable platform. This allows the drive to operate at peak performance. Technically, it doesn't increase the performance of a HDD over another stable-base mounting system, but it will allow the drive to perform better than what most of us use when temporarily using a 2.5" HDD in a desktop system.
Icy Dock products have evolved over the last couple of years. When I first started testing these around a decade ago, something like the flexiDock MB524SP-B would have sold for around $100. I still have products from the company from around that time and price point. Pricing has fallen with material changes and fewer components, but the progress has also made for a better user experience while also improving the products.
The MB524SP-B gets rid of the drive trays that previous models had. The user experience and convenience is better now because you don't have to screw the drives in sleds, which is a fairly tedious task. Using plastic in strategic places helped to decrease pricing while the metal outside structure leaves the rigidity.
Priced at less than $60 on Amazon, the MB524SP-B gives users easy access to multi-booting operating systems, or a good way to use older storage drives as removable media. If you don't have a free 5.25-inch bay then look at one of the many 3.5-inch bay models like the MB522SP-B that stuffs two 2.5" disks in the smaller space.
The Bottom Line
Strong pricing and features means a great value but only if you really need to quickly install and remove 2.5" drives.