The HP SPS-DRV 507119-002 internal server hard drive features a serial attachment SCSI (SAS) interface with a 32 MB cache. Designed for use in large-scale server applications, the HP 300 GB Hard Drive is a 2.5-inch SFF dual-port HDD. The 10K RPM speed of the HP 300 GB Hard Drive provides a fast response time under normal transaction rates. The dual port technology of the HP SPS-DRV 507119-002 internal server hard drive allows it to operate at 6 Gbps as opposed to the standard 3 Gbps, and also keeps the hard drive functioning should one port experience failure. The HP 300 GB Hard Drive is equipped with a serial attached SCSI communication protocol that uses point-to-point architecture through a host bust adapter that is fitted with simultaneously operating full-duplex channels. The SAS interface of the HP 300 GB Hard Drive allows the consumer to connect a 3 Gbps SATA to a HP SPS-DRV 507119-002 HDD for more flexibility of hard drive configurations within the server unit.