Western Digital Ultrastar 7K6 HUS726T4TAL5204 4 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)Designed for data centers and enterprise storage environments, the Western Digital Ultrastar 7K6 delivers reliable, high capacity performance in a compact 3. 5 inch form factor. This internal SAS hard drive is built to handle demanding workloads, from databases and virtualization to backup and archival storage. With 4 TB of raw storage, you gain scalable capacity for growth, while the SAS interface provides fast, low latency access essential for