You can see one of the hard disk drive drawers in Figure 17. If you pay attention you will notice several rubber rings that work as noise absorbers.

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Figure 17: One of the drawers.

The rear part of each cage is really interesting. The top cage comes with a 92-mm fan installed (details about specs weren’t given), but the bottom cage doesn’t.  So you should install your first three hard drives on the top cage (or on the bottom cage, if you move the fan to it). The cage has an individual high/low speed controller for each fan, which is really nice. In Figure 19, you can see all the connectors present on each cage.

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Figure 18: Hard disk drive cages.

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Figure 19: Connectors on one of the cages.

Since the cages are removable, you can, if you want to, remove one of the cages to gain three extra 5 ¼” bays. In fact you could even remove the two of them in order to gain six 5 ¼” bays.