Hypertec Replacement HPE SATA hard drives are designed for reliability & mass storage demanded by today's server & storage environments. The SATA hard drive portfolio is categorized into two categories: Entry (ETY) & Midline (MDL) hard drives. HPE SATA Entry hard drives are the lowest unit-cost solution for entry level servers. Designed for economical reliability & performance for non-mission critical applications, Entry & Midline SATA hard drives provide the best price advantage for these lower workload environments. These hard drives are available in Small Form Factor (2.5in) & Large Form Factor (3.5in) for both hot plug & non-hot plug environments.