Dell branded (non-generic) 300GB 10K SAS HDD for your EqualLogic storage needs. The R3YD9 is a 300GB 10K RPM SAS hard drive with tray for use specifically in Dell EqualLogic storage arrays. Whether you’re upgrading your Dell EqualLogic storage system or simply looking for a replacement hard drive, we have what you need. It has the ability to self-diagnostics performed when power is applied to the drive, balanced low mass rotary voice coil actuator, and also incorporates industry-standard Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)