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Chat with our Specialist- HP SAS (Serial Attached SCSI) HDDs (Hard Drives) are high-performance alternatives to SATA hard drives. SAS hard drives combine high-bandwidth and faster data transfer rates with better error detection and recovery, as well as having higher reliability specifications.- Higher hard drive performance compared to typical SATA drives- Higher hard drive reliability compared to typical SATA drives900GB SAS HDD, 1000RPM, 2.5"