Unlike some other cases, this one has standoffs so you can use ultra-thin drives while keeping them securely in the case. A really nice feature is that the case is attached with screws, so it's secure. The kit includes a screwdriver and an extra screw. The only downside - and this is trivial - is that the screws are very small, so some people may need a magnifying glass and/or tweezers to help with the installation. This is the best case we have ever bought!