A Detailed Look – At the Inside
Removing the left side panel provides a good view inside the Osiris mid-tower enclosure.
Looking up into the motherboard area you can see the two 120mm exhaust fans on the top and rear panel. There are a total of 7 expansion slots and each slot has a dedicated machine screw; no tool-less retention mechanisms here. The motherboard tray uses standoffs and includes mounting holes for ATX, M-ATX, FlexATX and ITX form factors.
The power supply is designed to mount in the bottom of the chassis, which helps keep the case’s center of gravity low for better stability. Note the bottom intake air opening directly under the PSU location. This allows a power supply with a bottom intake fan to pull cool outside room air directly into the PSU and then exhaust it out the back of the case.
There are five exposed and one internal 5.25” drive bays located down the front of the Osiris enclosure. The lower bay comes fitted with a 3.5” drive adapter, which can be positioned wherever you like. At the bottom is the removable HDD cage that holds up to four 3.5” HDDs.
The modular HDD cage (rack) slides out the front after first removing the front bezel and the four thumb screws that secure it.
The three Hiper labeled 120mm case fans used in the Osiris enclosure (HA1225L12S-Z) are rated for up to .33A and 1,500 rpm at 12 VDC.
Removing the right side panel provides access to the right side of the drive bays and for routing cables and wiring.