The CISCO 58-100180-01 UCS-HD12TB10K12G is a 1.2TB 10K 2.5" SAS hard drive with a caddy, designed for use in Memory Vault systems. It is a silver-colored SATA drive with a storage capacity of 1TB, ideal for high-performance storage solutions. The drive is compatible with SAS interfaces and operates at a rotation speed of 7200 RPM, providing reliable and efficient data access for various computing and networking needs. Made by Dell, this SAS drive is a dependable choice for expanding storage capacity in servers and storage systems.