Inside the Enthoo Primo

With the side panels removed the Enthoo Primo has a more classic layout than many of the cases we've seen recently, with a large chunk of space on the right side devoted to 5.25 and 3.5-inch storage.

There is still plenty of room for larger motherboards, however, with E-ATX and SSI EEB form-factors supported. There are plenty of holes for cable routing, and very substantial rubber grommets for all of them.

Looking toward the back we see a pre-mounted 140 mm exhaust fan, and just above it on the top of the case we have another.

The first thing you'll probably notice looking toward the front of the case is the stack of storage leading up to the front panel.

The second thing is probably going to be the bracket that partially obstructs the area to the right of the motherboard tray. We've seen panels designed to hide cable mess before, and they have a habit of getting in the way of longer graphics cards. We'll have to see how the build progresses.

The case bottom reveals yet another 140 mm fan, this time positioned as intake, and the floor also supports radiators via a removable bracket.

With the bracket removed it would be a simple matter to mount a radiator up to 280 mm (or an additional intake fan), and with the bracket removed the case floor also presents mounting points.

Next we'll take a look behind the motherboard tray, and into the most cavernous cable-routing area I've ever seen.

Here we see six 3.5-inch tool-less hard drive bays, a pair of SSD trays (and three total mounts counting the spot below the CPU), a fan header right below the CPU cutout, and velcro straps to secure cables. It's a clean layout, and there is a ton of room. How much? Here's a look down to see just how much depth this area offers:

Massive! It should take zero effort to close the back panel with everything installed, but with this much room and all of the provided velcro straps, I feel its the builder's duty to make a clean build of it. In reality, it doesn't matter how you stuff your cables back here; that back panel is going to close.

Speaking of panels, it's easy to remove the front panel below the optical storage, as this panel latches with a spring closure.

Once removed the panel reveals a removable dust filter for the front intake.

The other filters include a pair on the bottom of the case, and these pop out with a spring closure as well.

The rear panel is vented in two places, with magnetic filters providing protection from dust behind the openings. These vents are necessary if the rear PSU mount is used, or the optional radiator/fan bracket from the accessory package is installed behind the motherboard tray (the opening is covered with a plastic panel by default).

And finally we have a filter built into the top panel.

Notice there are some components installed in that last photo? I'm getting ahead of myself here! We'll cover component installation with the build process on the next page.

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