This case has four external 5 ¼” bays, one external 3 ½” bay and seven internal 3 ½” bays for hard disk drives (one shared with the 3 ½” external bay). Even though we can see holes on the middle of the 5 ¼” bays for installing screwless retention mechanisms, this case doesn’t come with them. On the other hand, this case comes with several thumbscrews for fastening 5 ¼” devices, so you don’t need to use any tool to install them. The same goes for the external 3 ½” device.

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Figure 13: Bays.

As for the 3 ½” bays, two of them are located between the 5 ¼” cage and the main hard disk drive cage and they don’t use any kind of screwless retention mechanism. One of them has a dual function: can be used by either a hard disk drive or an external 3 ½” device like a floppy disk drive. The five 3 ½” bays present on the main hard disk drive cage use a screwless mechanism based on rulers that need to be installed on the sides of each drive.

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Figure 14: Screwless mechanism.

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Figure 15: Hard disk drive installed to the case.

Lexa S comes with an adapter for installing up to two 2.5” devices (most likely SSDs) on a 3 ½” bay.

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Figure 16: 2.5” to 3 ½” adapter. It holds up to two 2.5” devices.

In Figure 17, you can see all accessories that come with this case.

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Figure 17: Accessories.