Additional Info

The MMR-3G6XRS-3U is a sliding rack mount for Mac Mini M4 that fits 6 M4 Mac Minis into 3U of standard 19-inch rack space. Built for IT environments where front access, airflow, and per-unit power control all matter. This kit is designed specifically for the M4 Mac Mini and is not compatible with M2 or earlier unibody models.
The full ball bearing slide gives smooth front access to all 6 units without pulling the assembly from the rack. The internal spacer between each bay doubles as an airflow baffle, directing cool intake air toward each unit while separating it from hot exhaust. This keeps temperatures consistent across all 6 Minis under sustained load without requiring additional airflow management.
Optional spring-loaded power button toggles are available for each bay individually, giving front-of-rack power control to every unit without reaching behind the enclosure. A rear brace is available for builds where the slide needs to anchor to the rear of the rack. The standard brace reaches 35 inches, with a longer kit available for deeper racks.

This is not for the M2 and previous unibody models.