These drives have a small number of reallocated sectors, but otherwise show no signs of failure during testing. The Seagate Exos 7E8 4TB SATA ST4000NM0115 Enterprise Hard Drive is a high-performance internal hard disk drive designed for enterprise use. With a storage capacity of 4TB and a rotation speed of 7200 RPM, this HDD provides reliable and efficient data storage and retrieval. The 3.5-inch form factor and SATA interface make it compatible with a wide range of servers and systems, while the tested and verified performance ensures consistent and dependable performance. Ideal for businesses and individuals seeking robust storage solutions, the Seagate Exos 7E8 is a dependable choice for enhancing data management capabilities.