The Seagate Exos X18 18TB internal desktop hard drive (model ST18000NM000J) is a high-performance storage solution with a storage capacity of 18TB. With a rotation speed of 7200 RPM and a cache size of 256 MB, this hard drive offers fast read speeds of up to 750MB/s and a transfer rate of 750 Mbps. It is designed for PC compatibility and features hot plug support and secure encryption for added convenience and security. This HDD is ideal for users looking for large capacity storage with reliable performance.