NEW SEALED IN BOX. FAST FREE SHIPPING The WD Red Pro 18TB NAS HDD is a high-performance internal desktop drive designed for use in network-attached storage systems. With a storage capacity of 18GB, this SATA interface drive from Western Digital offers fast data transfer speeds thanks to its 7200 RPM rotation speed and 512MB cache. Ideal for demanding applications, this HDD is reliable and efficient, making it a great choice for businesses and individuals looking to enhance their storage capabilities.