Western Digital WD4001FYYG-R - Western Digital 4TB 3.5 SAS 7.2K 6Gb/s Hard Drive

- Capacity: 4TB, for your data storage needs - SAS 6Gb/s interface optimizes burst performance - Spindle Speed: 7.2K RPM for improving data transfer rate - Form Factor: 3.5 inch and cache: 32MB