The Hard Drives Didn't Used but I list them as Like New Condition For Sure .The Seagate BarraCuda ST3000DM001 3TB Internal SATA 6Gb 3.5" Hard Drive is a high-performance storage solution designed for desktop PCs. With a rotation speed of 7200 RPM and a cache size of 64MB, this HDD offers fast data transfer rates and efficient multitasking capabilities. The drive is part of the Barracuda product line by Seagate, known for its reliability and performance. With a storage capacity of 3TB, this hard drive provides ample space for storing large files and applications. It is a top choice for users seeking a dependable internal desktop drive for their computing needs.