The Seagate 160GB ST3160212A 7200 RPM PATA IDE 3.5" PC HDD is a silver internal desktop drive designed for high-performance storage on PCs. With a storage capacity of 160GB and a rotation speed of 7200 RPM, this hard disk drive offers reliable data access and storage. The unit also features a cache of 2MB, read speed of 500MB/s, and transfer rate of 100 Mbps. Backed by a 1-year manufacturer warranty, this Seagate hard drive is a dependable choice for expanding storage capacity in your computer system. I know nothing about this just what I was told. Buy if you know