SINGLE PACK. Constellation 7200 SATA 6Gb/s 1TB Hard Drive 7200RPM 64MB Cache. Constellation 7200 - the 2.5-inch enterprise-class hard drive delivers both 1TB capacities and enterprise reliability at the industry's lowest power consumption for storage-hungry nearline applications. Self-Encrypting Drive (SED) and FIPS 140-2 Validated SED security options available to help you protect your data.