Toshiba 4TB HDD Hard Drive - Internal - 3.5" - SAS 12Gb/s - MG04SCA40EA 7200RPM
Model: MG04SCA40EA. Capacity: 4TB. SAS drives are not compatible with standard desktop SATA ports. Enterprise SAS drives are engineered for Interface: SAS 12Gb/s. This is a SAS (Serial Attached SCSI) drive.