Icy Dock 2 x 5.25" to 3 x 3.5" Hot swap SATA II HDD Module, MB453SPF-B

Features:

• Fits three 3.5'' hard drives, tacking up only two 5.25'' device space. 
• SATA II interface compatible
• High speed transfer rate up to 3Gb/sec. (depending on hard drive speed)
• Aluminum alloy construction. Effective airflow ventilation design
• Patented design of anti-shock absorption rail for great protection of system stability.
• one Hot-Swap 80 mm ball bearing cooling fan.
• Fan failure , Overheat audio / visual alarm.
• Support Hot-Swap .