THE MANA 136 INTERIOR
Both side panels are made by thick SECC steel which should keep the noise coming from the components into a minimum.
The interior looks quite amazing actually not only thanks to its black color but also because of the cable management design and the lack of drive trays.
All three 5.25" optical drive bays feature a quite sturdy tool-less locking mechanism which also allows you to use screws if you want.
The MANA 136 has space for six 3.5" and two 2.5" (SSD ready) disk drives without the need of trays.
What's somewhat impressive is that two 3.5" disk drive slots feature a hot-swap system.
The locking mechanism used for the 3.5" disk drives only requires you to slide the drive inwards until you hear the click sound.
Another thing i really liked with the MANA 136 is the room between the mainboard tray and the right side panel which allows for very good cable management.
Unfortunately the rear 120mm exhaust fan is not a LED one like the front one.
The MANA 136 does not feature a tool-less PCI Expansion locking mechanism so you will need to use regular screws to secure your cards.
A large meshed space and a metal air filter exist under the PSU area.
You can easily mount the two top 120mm exhaust fans but the available space may be enough for you to install a thin dual radiator for a water cooling solution.