Cooler Master CM 690 II Advanced Black & White Edition Case Review

The Disk Drive Bays

The Cooler Master CM 690 II Advanced Black & White Edition has four 5.25” external bays and six 3.5” internal bays. Installation of 5.25” and 3.5” devices can be done without the use of tools or screws. The case comes with one adapter to convert one of the 3.5” bays into a 2.5” or 1.8” one and another adapter to convert a 5.25” bay into an external 3.5” bay.

Figure 15: Disk drive bays

The 3.5” bays are available in two hard drive cages, one with two bays and the other with four bays. As previously explained, you can remove the bottom if you want to install a second 120 mm fan or a radiator from liquid cooling solutions on the bottom panel of the case.

Figure 16: Case with the bottom hard drive cage removed

Each 3.5” bay is actually a small drawer, as you can see in Figure 17. The pegs that hold 3.5” devices have rubber rings to reduce vibration and absorb noise. We don’t understand why Cooler Master didn’t add holes in these drawers to make them compatible with 2.5” devices.

Figure 17: The 3.5”-to-2.5” adapter and one of the 3.5” bays