HP Enterprise Hard Drive 450GB 15000 RPM SAS 3.5" Dual PortHP Enterprise 450GB 15,000 RPM SAS 3. 5" DP Dual Port 450GB 15000RPM SAS HDD, 3. 5", Black Replacement Drive Qualification Procedure When ordering replacement parts, customers may receive a hard drive that differs from their original. Replacement devices are necessary because older technology products reach end of life and are no longer available on the market. HP's drive qualification process consists of advanced, rigorous testing to ensure that