SINGLE BULK PACK 15000 RPM 3.5" Seagate Cheetah 15K.7 the highest performing highest capacity 3.5-inch mission critical hard drive with best-in-class reliability for Tier 1 storage environments. This industry-leading enterprise drive reduces storage costs per GB while increasing capacity per watt. Drive power consumption is dynamically optimized at all levels of activity with Seagate's exclusive PowerTrim technology.