The HP StorageWorks Modular Smart Array 50 Enclosure MSA50 is a 1U Serial Attach SCSI (SAS) disk drive storage enclosure supporting Small Form Factor (SFF) SAS or Serial ATA (SATA) drives. This enclosure delivers industry-leading data performance, availability, storage density, and upgradeability to meet customers' demanding and growing storage needs. The SFF drive carrier is designed to support the Universal form factor hard drive in either SAS or SATA. This new form factor provides optimized performance per U of space while delivering unparalleled power consumption. The MSA50 enclosure supports direct attach storage to HP ProLiant Servers. The MSA50 supports the cascading of shelves in a 1+1 configuration to allow a maximum of 20 SFF drives in a 2U configuration attached to a single controller port. This single controller port incorporates four lanes for a total max throughput of 12Gb/s for SAS.