The NetApp X356A-R6 X356A 3.84TB SAS 12G SSD is a high-performance solid-state hard drive designed for use in storage systems such as DS2246, DS224C, FAS2552, FAS2650, A200, and A220. With a storage capacity of 3.84TB, this SSD offers fast data access and transfer speeds thanks to its SAS interface. The compact form factor of 2.5 inches makes it suitable for a variety of devices, and its unit type of "Unit" indicates that it is sold individually. This NetApp X356A-R6 X356A SSD is a reliable and efficient storage solution for enterprise and personal use.