The RA01 is a durable rackmount ear kit for SilverStone cases that are rackmount ready. To expand the functionality and to better safeguard your favorite SilverStone desktop cases, ra01 is the perfect option for any user who wants to have more storage versatility while also providing a more controlled handling of their cases. The rugged and SilverStone styled RA01, comes equipped with pre-drilled mounting holes and anodized finish for luxurious look. This high quality rackmount kit gives SilverStone enthusiasts a welcome exclamation mark to top off their system!