Out of the box, the Montech King 65 Pro looks very much like an edgy version of the King 95 Pro. This is because this variant uses the same body and tooling, but Montech has simplified a few things to offer the chassis at that $100 sweetspot. An odd aspect however are the heavily tinted glass panels, which are quite the unnecessary departure from the clear ones we enjoyed seeing on the King 95 Pro.
In the front, you can thus barely make out the interior of the chassis. On the right edge there is a very clean I/O, which lacks any labels. While this is usually a good thing, your guess is as good as mine when it comes to figuring out which of the two audio connectors are the microphone and which is for headphones. Montech could have just gone with a single combo jack and eliminated any guesswork instead. Looking at the King 65 Pro from the rear, it becomes apparent that this is not your classic mid-tower. Instead, it is more of an ATX sandwich chassis with the PSU and hard drives next to the components instead of underneath them, something people would call a dual-chamber or "fish tank" case layout.
The tinted glass covers the entire main side of the King 65 Pro, while the metal panel features perforations across its entire surface, offering as much airflow as possible.
In the rear in the bottom left corner, you will find the PSU bay with one set of mounting holes. Interestingly enough, there are additional mounting holes which seem to be for a hard drive cage, which is completely unrelated to the King series so far. To the right of that, there are the seven bridgeless expansion slots with reusable covers.
At the top of the rear, there are two 2.5/3.5" drive trays behind a removable, vented metal cover. This allows you to easily install storage without the need for any tools, but you still have to dive into the case to connect them up. Lastly, in the top right corner, there is a 120 mm ARGB equipped exhaust fan which is installed in slightly elongated openings, so that you have a bit of flexibility in its horizontal placement.
On the top, there is another vented metal panel. To save on cost, the top panel - just like the vented side - uses fine perforations to act as a dust filter & the overall build of the cover is all steel. On the King 95 Pro, it was made up of multiple parts, which certainly increased cost as well. This updated design will work just as well and also feels a bit better built due the solid materials used. You may install up to three 120 mm fans in the ceiling or alternatively go for a radiator of up to 360 mm in size. Thanks to the removable frame, you may also prep such cooling outside the confines of the case and then simply drop it into the chassis.
The whole underside of the Montech King 65 Pro is protected by a fine mesh dust filter. It may be pulled out the back of the case easily, without having to tip over the system.