This is a great case if you want to run multiple operating systems on one computer. I have 3 SSDs. One for Windows 7, one for Linux and the main tray for Windows 10. I can shut down the computer and remove one tray and then put in another for a completely different operating system. I have to take two clamps and squeeze them together to remove the tray. I broke the clamp on one side but the tray still works. I didn't have the bad contact problems that some people talk about. I have a 5.25 inch 2 tray model. I use the top compartment for the operating system and the bottom for the secondary data drive. I ended up buying the second one because buying a second 2 compartment unit was just as expensive as buying two separate tablets.
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