The ROG GR20 Edition 20 is designed to put components on display. We built the complete PC for our ROG 20th-anniversary series in it. The finished result looks superb, with cables well hidden. But the open structure does not make assembly as simple as it might seem: keep the manual close by.
Our build and assembly conditions
Our partner Absolute PC purchased this unit. We assembled the entire PC ourselves on a large workbench while filming a YouTube video. It took about four to five hours including filming, so this is not an uninterrupted build time.
The build combines the ROG Crosshair X870E Edition 20 motherboard, Ryujin 360 Edition 20, ROG Astral GeForce RTX 5090 Edition 20 and ROG Thor 3000W Titanium III Edition 20 PSU. We added a Ryzen 9 9950X3D2, a 4 TB Samsung 9100 PRO and 48 GB of CUDIMM in two 24 GB modules. Rated at 9,200 MT/s, the memory was set to 8,000 MT/s.
The case stood vertically, with the graphics card horizontal and supported by the GR20’s included bracket. This article covers the case’s design, assembly and use.
Careful construction without excess
Unboxing the GR20 impressed us less than some other pieces in the collection. We have seen more elaborate or luxurious cases, notably InWin’s Signature range, though at different prices. Here, construction and finish are good, and the price seems surprisingly restrained next to the rest of Edition 20.
ASUS describes a mainly aluminium chassis with steel and plastic elements. It can stand vertically, tilted or horizontally [1]. The specifications list 285 × 513 × 470 mm and an empty weight of 9.3 kg [2].
The open layout naturally showcases components. It really comes into its own once the PC is fully assembled: every part is visible, making you want to keep the machine on display.
Assembly that calls for the manual
Components are easy to reach, but understanding how the chassis fits together takes time. We consulted the manual for that, for the cooler’s fan orientation and for fitting the covers at the end. The GR20 needs more attention than its apparent simplicity suggests.
The large workbench helped. A second person was also useful when fitting the liquid cooler. We had already attached its block to the motherboard, so one of us briefly held the radiator while the other secured the parts. The need arose from our chosen assembly order, but the help was welcome.
The Ryujin 360 radiator went on the right-hand side at the rear of the case. Routing the tubes was simple once the top of the chassis was open.
Surprisingly discreet cables
Cable management pleasantly surprised us. The Thor’s flexible cables made it easy to hide excess length for a very clean result. Once the case covers were back on, no cables spoiled the presentation. The motherboard’s decorative PCIe covers, however, had to stay off to make room for the RTX 5090.
Stable and very quiet to our ears
Fully assembled and standing vertically, the PC was stable and felt solid. Given the build’s value, we preferred moving it with two people, more as a precaution than out of mistrust of the chassis.
We used the cross-flow fan included with the GR20. ASUS describes it as circulating air across a broad area, particularly around the SSDs [1].
At idle, we could not hear the PC. Even in games, the build remained extremely quiet to our ears. This describes our assembled system, its components and settings, not an acoustic measurement of the case alone.
A PC to display—and dust
The downside of an open layout soon becomes clear: dust settles easily. Regular cleaning is part of keeping it looking good.
Is that surprising for this kind of hardware? You also choose a GR20 for the spectacle of seeing your components every day. Dust is a constraint, but it does not undermine the appeal for someone specifically seeking this presentation.
Key takeaways
We really liked the GR20 Edition 20 once the build was finished. The finish is carefully executed, the chassis inspires confidence and the cables disappear. Assembly requires following the instructions, especially for the cooler and covers, but the result rewards the time spent.
At around €650 during our test, we do not see price as the main obstacle. It is still a large sum for a case, but seems consistent with the product and its place in this collection.
We would not choose it for our own PC, simply because we prefer closed cases. For an enthusiast wanting to show off a build, though, it is a beautiful piece. Beyond the usual open-case constraints and the care needed during assembly, we have few complaints.