The HP Storage Works 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, & upgradeability to meet customers demanding & 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 Pro Liant 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 12 Gb/s for SAS.