MSI has launched a new chassis: the open-frame MEG EM9. Described as a test bench, it's built for enthusiasts, reviewers, and anyone looking for a case that streamlines PC benchmarking, hardware testing, and component validation. The open-frame design offers direct access to all components, and the MSI MEG EM9 supports E-ATX motherboards, as well as back-connect ATX and Micro-ATX boards.
The black, minimal design also supports radiators up to 420mm for liquid cooling and room for a single 120 or 140mm fan. The MEG EM9 also supports external storage via a dedicated bay for dual 2.5-inch SSDs. At 336 x 358 x 239 mm, the chassis isn't overly large, but from what we can see, it only supports a horizontal, laid-flat orientation. For GPU testers, the specs note no restrictions on GPU length, so you could easily connect the largest GeForce RTX 5090 to the MSI MEG EM9.
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Which motherboards are compatible with the MSI MEG EM9, including back-connect models?
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Although the product page for the MSI MEG EM9 is live, local pricing and availability are still TBC. That said, the release should be relatively soon, as MSI is reportedly selling the MEG EM9 at its official Taiwan store (via VideoCardz) for $2,590 NTD, which works out to around $82 USD, with shipping expected to begin at the end of October. For more details, here's a breakdown of the specs.
| Item | Details |
|---|---|
| Product Name | MEG EM9 |
| Case Form Factor | Test Bench |
| Motherboard Form Factor Support | Regular: E-ATX (Up to 280 x 305 mm), ATX, Micro-ATX, Mini-ITX, Back connect: ATX, Micro-ATX |
| I/O Ports | 1 x Reset Button, 1 x Power Button |
| Drive Mount Support | 2 x 2.5" Bay |
| Expansion Slots | 8 |
| Maximum GPU Length | Unrestricted |
| Maximum CPU Cooler Height | Unrestricted |
| Power Supply Support | ATX |
| Maximum PSU Length | 200 mm |
| Fan Size Support | Top: 1 x 120 mm / 1 x 140 mm |
| Radiator Size Support | Top: 120 / 140 / 240 / 280 / 360 / 420 mm |
| Dimensions (DxWxH) | 336 x 358 x 239mm |
