G.SKILL Announces Unique Pentagonal Z5i Mini-ITX PC Case | TechPowerUp
 
G.SKILL International Enterprise Co., Ltd., the world's leading manufacturer of extreme performance memory and gaming peripherals, is thrilled to announce the Z5i Mini-ITX chassis, a minimalist and compact PC case constructed for high-performance, small-form-factor (SFF) builds. The Z5i features a sleek pentagonal prism case design with curved tempered glass side panels on both sides, and is capable of supporting liquid cooler radiators of up to 280 mm and high-end triple-slot graphics cards of up to 330 mm in length for a small, yet powerful PC build.

The G.SKILL Z5i is a uniquely crafted Mini-ITX case with curved 4 mm tempered glass side panels that wrap around the precision-made single-piece aluminium exterior frame to form a 5-sided case, showcasing the dual-chamber design so internal hardware components can be viewed from both sides. To enable a cleaner workspace, the Z5i is created with a bottom-facing motherboard I/O panel so cables can be neatly and easily managed.
 
Compactly Designed for High-End Hardware
Designed to accommodate high-end hardware components, the Z5i Mini-ITX case supports large 3-slot graphics cards of up to 330 mm in length and supports up to a 280 mm AIO radiator or two 140 mm case fans in the rear for cooling. Ample data storage is also essential in a high performance system, so the Z5i is constructed to house up to three storage drives, including two 2.5" SSDs and a third convertible 2.5"/3.5" SSD/HDD drive space.

Front Panel Connectivity & ARGB Lighting
For easy access to external USB devices, the front panel on the Z5i is equipped with two USB 3.0 ports and one USB 3.1 Type-C port, providing convenient high-speed connections to modern portable storage devices or smartphones. The Z5i also integrates ARGB to provide ambient underglow case lighting via the standard 3-pin 5 V RGB header on supported motherboards, and controllable with motherboard lighting software for easy lighting customizability.

Designed with Excellence
Designed to support high-end components and integrating unique features into the compact Mini-ITX form factor, the Z5i has received worldwide recognition for its product design as the recipient of "iF Design Award 2021" and "Red Dot Design Award 2021".
 
I think this is one of the most interesting mini-ITX cases I have seen.