JONSBO released a rather unique-looking MOD-3 Mini-series MicroATX compatible aluminum open frame PC chassis.

There are two color options: white and gray. 4mm thick tempered glass panels on both sides may enchant the illumination of the motherboard, graphics card, water cooling unit, and so on. Furthermore, the front section includes an addressable RGB LED with a 5V / 3pin connector. The chassis is composed of aluminum, the drive bay is 2.5 / 3.5-inch bay x1, the cooling fan is front 120mmx2, top 120 / 140mmx2, the expansion slot is 4 steps, each effective space is 360mm in the length of the graphics card, the height of CPU cooler 165mm, and depth of power supply unit up to 165mm. Micro ATX, Mini-ITX form factor, external dimensions of 251 mm, depth 569 mm, height 535 mm, weight 8.2 kg

MOD-3 Mini White
https://www.jonsbo.com/en/products/MOD3MiniWhite.html
MOD-3 Mini Gray
https://www.jonsbo.com/en/products/MOD3MiniGray.html