The WD SE WD1002F9YZ 1TB 7200RPM 128MB SATA 6.0Gb/s 3.5" Enterprise HDD is a high-performance internal desktop drive suitable for PCs. With a storage capacity of 1TB and a cache size of 128MB, this HDD provides fast read speeds of up to 500MB/s and a transfer rate of 300 Mbps. Manufactured by Western Digital, this enterprise-grade hard drive is designed for reliable storage and comes with a 1-year manufacturer warranty. Its hybrid (HDD/SSD) features make it an efficient choice for storing a large amount of data in a compact 3.5-inch form factor.