The product is a lot of three Dell Constellation ES ST31000424SS 1 TB SAS RPM 72.k HDDs, designed for use with PCs. These internal desktop drives have a silver color and a rotation speed of 7200 RPM. With a storage capacity of 1 TB and a cache size of 16 MB, these drives offer fast data transfer rates of up to 300 Mbps. They are compatible with HDD drive types and support hot swap features for easy installation and maintenance. The product line of Constellation ensures reliable performance and high-quality storage solutions from Dell.All of these have went through DOD 3x wipe with no issues.