WD Red Pro WD6003FFBX 6TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Available in large capacities with support for 1-24 bays
Enhanced reliability with 3D Active Balance Plus technology and error recovery controls with NASware 3.0 technology
Extended drive testing to ensure each drive is tested for extended reliable operation
Vibration & Shock protection