The MSA50 is ideal for any environment that can benefit from High Availability features such as hot plug fans, power supplies and drives but requires a cost sensitive solution. Due to its unparalleled thermal characteristics and power consumption the MSA50 is a great fit for dense environments. 1U rack height Support for up to 10 SFF SAS or SATA Universal hard disk drivesCascadable 1+1 for up to 20 spindles in a 2U configuration or 1.44TB.Universal SFF SAS drive carrier - provides better cooling and reliability by providing increased air flow through the storage unit.