Hard Drive     3.5 inch Drives   HUA722010CLA330 A7K2000 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s HUA723020ALA640 7K3000 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s HUS723020ALS640 7K3000 2TB 7200 RPM 64MB Cache SAS 6.0Gb/s HUS723030ALS640 7K3000 3TB 7200 RPM 64MB Cache SAS 6.0Gb/s HUS724040ALE640 7K4000 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s       2.5 inch Drives   0J38065 500G 5400 S600 8M Cache 7mm 0J38075 500G 7200RPM S600 32M Cache 7mm 0J22413 1.0T 5400RPM S600 8M Cache 0J22423 1.0T 7200RPM S600 32M Cache       All internal HDD for device integration only