A Detailed Look – At the Inside

The Obsidian Series 750D case offers a lot of usable space inside; which isn’t surprising since it is a full-tower enclosure. While only slightly wider (0.3”) and about 2” taller than the 650D mid-tower case, you will definitely notice the extra room inside. Looking into the case from the left side reveals a typical ATX mid-tower case layout with the power supply located at the bottom instead of up top. 

The top section inside the enclosure is dominated by the motherboard area, which features a large cutout opening behind the CPU area for easy access to mount CPU coolers. There are several grommeted openings around the motherboard area for neatly routing cables and wires.

In the upper right are three external 5.25” drive bays, which include easy to use, tool-less drive locking mechanisms.

Looking down towards the bottom of the 750D case reveals two HDD cage locations towards the front, behind the intake fans, and the power supply mounting area towards the back. 

The 750D case comes with two 3.5” HDD cages that can be positioned to suit your personal needs. Each cage contains three slide-out HDD trays. The tool-less trays can mount either a 3.5” or 2.5” HDD / SSD.  And behind the two drive cages are four more 2.5” drive trays – more on these later. The 3.5” drive cages can be arranged in several different ways: (1) stacked one on top of the other, (2) mounted on the bottom side by side, or (3) remove one or both cages and just use the 2.5” drive trays in the back.

Removing the left side panel provides access to the four 2.5” SSD drive trays and the area behind the motherboard, which offers a lot of room to neatly route and conceal cables.

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