HP Enterprise 120GB 6Gb SATA 2.5 MU-P 816965-B21HP Enterprise 120GB 6Gb SATA 2. 5 MU PLP 816965 B21, 120 GB, 2. 5\", 6Gbit s 120GB, 2. 5\", SATA III, Read 68,000 IOPS, Write 12,000 IOPS Replacement disk qualification procedure. During the fulfillment of a spare parts order, customers may receive a hard drive that differs from the original. Replacement devices are necessary when older technology products reach the end of their life cycle and are no longer available on the market. HP disk