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Perseus

Small form factor cases, made by the people who use them

Who

Six small form factor builders, and a community that designs and tests alongside us.

What

Pantheon, our first case. In development, and not finished yet.

When

When the pre-production model is approved. Not before, and we will not pretend otherwise.

Builds from the community

Percy, the dog Perseus Cases is named after, next to a Pantheon

A Pantheon build with the graphics card on show, side panel off

A Pantheon on a desk with two fans and the side panel off

A Pantheon on a desk beside a plaster bust

An open Pantheon build, graphics card and radiators visible

A Pantheon photographed head on, graphics card centered

A Pantheon with a wooden fascia, on a kitchen counter

A water-cooled Pantheon build seen from the front corner

A closed Pantheon standing on a rug

A Pantheon build with teal cabling, seen from the open side

A Pantheon build with a water block and radiator, seen at an angle

A dark water-cooled Pantheon build, side panel off

An open Pantheon build with a patterned side panel

A Pantheon head on, cooler and radiator visible inside

A closed Pantheon on a marble counter, seen from the side

Close-up of the rear input and output panel of a Pantheon

Close-up of the water cooling loop inside a Pantheon

An open Pantheon seen from above, three fans across the top

The rear panel of a Pantheon, standing on a rug

An open Pantheon build with a patterned panel, lit from behind

A Pantheon build with teal cabling, seen at an angle

The engraved PANTHEON badge across the fascia, on the diagonal

The first case

Pantheon

18L, sandwich layout, up to three 280mm radiators. Pre-production, sold by FormD when it opens.

Maxed-out SFF cooling

Three 280mm radiators in 18L without resorting to slim fans, dedicated quick-disconnect ports.

Built around your hardware

The internal spine moves through seven positions, trading space between the GPU and cooling system as the build requires. Or, flip the spine entirely to shift the radiator compatibility from 47 to 63mm to fit most AIOs.

Designed to come apart

Panels, fascia, fan/rad rails, PSU bracket, and even the spine separate cleanly to allow for your most creative builds.

The Pantheon's perforated top panel with a quick disconnect, in black and white

Who made it

The people behind the project

Pantheon was designed by a group of SFF enthusiasts in collaboration with 3FC, the designer behind the FormD T1.

Where the project stands

Pantheon is in pre‑production

We are waiting on the pre-production model. Once it is approved, pre-orders will open.

Specifications on this site are provisional and will change as the design is finalized.

Designdone
Prototypedone
Pre‑productionnow
Productionafter approval

The Pantheon on a desk beside a monitor, mid benchmark — Prototype 1, on the bench