During Computex 2023, EK Water Blocks, a company known for making all kinds of liquid cooling solutions, showed off a concept case in partnership with InWin. Called 977EK, the concept case is a pre-production model that centers around the idea of a brushed aluminium shell combined with tempered glass panels. The case is made out of the internal structure, and for the outside, the two brushed aluminium sheets meet in the back and at the bottom of the case, removing the visible lines of the 4 mm thick aluminium sheets meeting, improving aesthetics. On the sides, the case carries two tempered glass panels held by thumb screws in the corners. An odd shape perforates the top part of the aluminium sheet.

The internal structure is interesting, as the case is built for water cooling of the system. While the motherboard tray can support any format from Mini-ITX to E-ATX, the tray itself can be rotated, reversed, and removed entirely based on user preference. For radiator setup, the 977EK concept case can accommodate up to 420 mm radiators with 45 mm thickness at both the top and bottom of the chassis. Additionally, the case has support for 350 mm GPU, 7 or 8 PCIe slots (depending on the configuration), a PSU of 160 mm length, and an option for either one 3.5-inch drive bay or two 2.5-inch bays. The final production case will see some changes, as EK notes; however, they won't be too significant.