IB-158SK-B Trayless Mobil Rack for 3.5" SATA HDDs • Super fast HDD installation and exchange without tray • Supports all 3.5" SATA 1.5/3.0/6.0 Gbit/s HDDs up to 1'' (2.54 cm) • Fits in a standard 5.25" bay • Special aluminium case for better heat exchange • Supports Hot Swap and EasySwap® • Key lock to prevent improper operation • Fanless design, no noise • 12V power connector for addional fan if necessary