The Dell 9CF26 ST500DM002 18D142-501 500GB 7.2K RPM FW KC47 DC 14356 SATA 3.5" HDD is a high-performance internal desktop hard drive designed for use with PCs. With a storage capacity of 500GB and a cache size of 16MB, it offers reliable storage for your files, applications, and operating systems. This SATA interface HDD from the Barracuda product line by Dell is a cost-effective solution for expanding your storage capabilities in a 3.5-inch form factor.