In Figure 10 you have an overall look from the interior of this case. Even though you can remove the right side panel, the motherboard tray is permanently attached to the chassis.
This case comes with thumbscrews for fastening daughterboards to the case. We think the use of this kind of screw is perfect, since several screwless mechanisms use cheap plastic parts that break while you are building your PC. In Figure 11, you can see the rear 120 mm fan and the thumbscrews. The fans that come with the case use a three-pin connector, allowing you to connect them to your motherboard and thus monitor their speed.
This case comes with a 120 mm fan on the top and has space for you to install another 120 mm fan.
Zalman GS1000 also has space for the installation of two 120 mm fans at the bottom of the case, as shown in Figure 13. If you install fans here you should also install the feet that come with the case.