The IBM 500 GB 7.2K rpm NL SATA 2.5-inch SFF Slim-HS HDDs provide 2.5-inch form factor options that can be used as hot-swap or non-hot-swap drives. The addition of the 500 GB 7.2K rpm offering to the System x and BladeCenter blade family of 2.5-inch SAS HDDs makes it the highest-capacity SFF options.