There is a big mesh on the lower portion of the front panel featuring a dust filter behind it, and you can install an optional 120 mm fan there. Installing this fan is a little bit tricky, as you need to remove the front panel to access the place where it should be installed. This fan should be installed under ventilation mode, i.e., pulling air from outside to the inside, cooling down the hard disk drives.
Everything else from this case is identical to M59 and Lexa S. On the top panel there are places for installing two 120- or 140 mm fans, as shown in Figure 6. According to the manufacturer you can also install a water cooler radiator inside the case under this space.
On Gamma the power supply is installed on the bottom of the case, another feature that is usually only available on more expensive cases. What is really nice about Gamma is that it comes with a washable dust filter on the bottom of the case, right below where the power supply fan is located (if you use a power supply with a fan on the bottom part). This filter is easily accessible from outside the case.
In Figure 8, you can see the rear panel from Gamma. The rear panel and the interior from this case are painted black, which gives a very professional looks to this case. The slot covers are meshed, which helps increasing the internal airflow – another feature normally only found on more expensive units. There is also a mesh with big holes above the slots, also helping the internal airflow. The case comes with a 120 mm fan here (42 cfm, 23 dB, standard peripheral power connector and small three-pin connector) and as mentioned the power supply is installed on the bottom part. Gamma comes with two holes for water cooling systems on the top part.
Now let’s take a look inside NZXT Gamma.