Main Features   Trayless Mobil Rack for 3.5'' SATA HDDs Fresh Breeze This mobile rack has an improved and more efficient cooling system. First, the new aluminium case dissipates heat and additionally provides stability. Compared to the predecessor model the cooling fan has grown, from 3 cm to 4 cm. The nearly 70 % greater capacity of the fan makes possible slower rotation which results in more silent operation as well as more longevity. Super fast HDD installation and exchange without tray Supports all 3.5'' SATA 1.5/3.0/6.0  HDDs (1'' high) in a 5.25'' bay Special aluminium case for better heat evacuation ' Supports Hot Swap and EasySwap®   Technical Data Material Aluminium HDD size 3.5'' - 8.89 cm Required space 1x 5.25'' HDD interface 1x SATA 1.5/3.0/6.0 Gbit/s HDD capacity No limit  LED HDD Access Hot Swap, Plug & Play,  Lock Yes Display/Front panel, Alarm, Power switch No Transfer rate Up to 6 Gbit/s