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HGST Ultrastar 7K4000 Enterprise SAS HDD Review Discussion

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HGST's Ultrastar 7K4000 is a 3.5" enterprise class HDD that ranges up to 4TB in capacity, features optional encryption and spins at 7,200RPM. The drive is designed for data centers, cloud storage, and backup and archiving. We previously reviewed the SATA 6Gb/s interface Ultrastar 7K4000 which made a splash when it was introduced due to its 33% capacity leap to 4TB as well as its 2 million hour MTBF and its solid 5 year warranty. This time around however, we're reviewing the recently released SAS interface Ultrastar 7K4000 which broadly features a lot of the same advancements as its SATA sibling. The Ultrastar 7K4000 SAS features optional encryption, up to 4TB of storage utilizing five platters (800GB each), and superb reliability figures with its MTBF at 2.0M hours.

HGST Ultrastar 7K4000 Enterprise SAS HDD Review

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