By looking at the front panel of the In Win GRone case, you may have the impression that it has eight 5.25” external bays. However, only the top three are usable; the bottom five bay covers are stuck together and hide the two 140 mm fans that cool down the hard drive cages. These fans glow red when turned on and come connected to the available two-speed fan controller. There are no technical specifications available for these fans.

The 5.25” bay covers are meshed, but they don’t have air filters. The cover for the fans, on the other hand, has an air filter and is easily removable by pushing it.

click to enlarge
Figure 4: Front panel

click to enlarge
Figure 5: Front panel

On the top part of the front panel you will find the fan speed controller, where you can select between “Silence” (low speed) or “Turbo” (high speed). By default, the front fans and the hard drive cage fan are connected to this controller. You can also add the rear and the top fans to it, and it still allows the installation of a sixth fan.

The case has two USB 2.0 ports, two USB 3.0 ports, and the traditional audio jacks. The USB 3.0 ports use an internal connector.

click to enlarge
Figure 6: Buttons, connectors, and the fan speed controller