https://www.techpowerup.com/290294/silverstone-unveils-cs351-micro-atx-case-builds-intersecting-nas-gaming-use-cases
 
SilverStone today unveiled the CS351, a unique Micro-ATX case that lets you build a gaming or creation PC with hot-swappable storage, or a DIY NAS. This case is significantly larger than typical 5-bay NAS you find in the market, but that's because it packs room for a fully-fledged Micro-ATX setup, including room for a high-end triple-slot graphics card up to 36.8 cm in length. For creators, this means room for a top-grade Quadro RTX or Radeon PRO graphics card; for gamers it means room for any air-cooled RTX 3090 or RX 6900 XT.

The most striking feature has to be the five 3.5-inch hot-swappable lockable caddies, each with SATA 6 Gbps backplanes (optionally SAS 12 Gbps). The cage is ventilated from the inside with an 80 mm fan, and uses a 4-pin Molex input for power. Each of the 5 bays has an individual SATA 6 Gbps connection to your motherboard. Internal bays include one 2.5-inch mount, or the ability to mount up to seven 2.5-inch drives by eating into the room meant for graphics cards. Active ventilation includes three 40 mm rear exhausts, two 80 mm top exhausts, and an internal 80 mm conveyor for the 5-bay drive cage. Measuring 265 mm (W) x 209 mm (H) x 411 mm (D), the case weighs about 5 kg. The company didn't reveal pricing.
 
A micro-ATX build with hot swappable storage is a very unique idea in my personal opinion. 
 

Even for a NAS, that is an ugly case.  Creativity be damned!  Wow, one 80mm and three 40mm fans.  That’s impressive cooling for AT.  With a 30 series card in this you could roast marshmallows on it, heck cook breakfast on it.  Is the outside Teflon?  It should be.