With an added 1U height compared to previously released 4U chassis', allows for much greater cooling potential, which supports 2 x 180mm fans at the front (2 x Air Penetrator 184i PRO pre-installed) which is downward compatible with 3 x 120mm fans and up to 360mm liquid cooling radiator. Alike RM44, a graphics card retainer is included with reserved storage drive mounting holes which prevents sagging and moving of graphics cards while supporting up to 2 x 3.5" HDDs or 3 x 2.5" SSDs. A removable drive cage is included to support 2 x 3.5" HDDs - if unoccupied and left unused, opens up the option of a secondary SFX or SFX-L PSU to be installed.
The internal chassis also includes 4 x 2.5" SSD trays, so the chassis supports up to 7 x 2.5" SSDs or 4 x 3.5" HDDs and 4 x 2.5" SSDs. Other notable features include reserved mounting holes for sliding rails, 1 x USB Type-C interface, 8 x expansion slot, and last but not least, case feet are also included which allows the users to opt for a vertical placement instead of the usual horizontal orientation. Overall, RM51 is a feature-packed and highly functional rackmount chassis with unparalled compactness and space utilization.


