The IBM DJNA-351520 15.2 GB IDE 3.5" HDD is a reliable and high-quality internal hard disk drive suitable for PCs. With a rotation speed of 5400 RPM and a cache size of 512 KB, this Deskstar 25GP model provides fast read and write speeds. The drive is designed with a 3.5-inch form factor and uses the IDE (PATA) interface. Manufactured in the Philippines, this IBM HDD offers storage capacity of 15.2 GB, making it a dependable choice for storing and accessing data efficiently for RETRO or older computers. This drive was tested for "Surface, Read/Write, and S.M.A.R.T. errors." NOT A SINGLE ERROR!! This drive is in perfect working condition!!