Seagate Exos X18 18TB 7200rpm SATA III 3.5" NAS HDDSeagate Exos X18 NAS HDD comes with 18TB Storage Capacity. This HDD featured with SATA III 6 Gb/s Interface, 3.5" Form Factor, 256MB Cache, 7200 RPM Spindle Speed. In this HDD, the 7200rpm drive utilizes the SATA III 6 Gb/s interface for data transfer rates of up to 270 MB/s. This is one kind of professional-grade drive. It has an MTBF rating of 2.5 million hours as well as built-in digital sensors to ensure optimal performance, PowerBalance for lower power consumption, and a helium seal for lower power, weight, and increased durability and leak protection. This HDD has some Best-Fit Applications, these are - Hyperscale applications/cloud data centers, Massive scale-out data centers, Big data applications, High-capacity density RAID storage, Mainstream enterprise external storage arrays, Distributed file systems, including Hadoop and Ceph, Enterprise backup and restore - D2D, virtual tape and Centralized surveillance. It comes with Proven enterprise-class reliability backed by 2.5M-hr MTBF rating. The latest Seagate Exos X18 18TB 7200rpm SATA III 3.5" Internal HDD has 05 years of warranty.