Seagate Constellation.2 ST91000640NS 1TB 2.5" 7200RPM 64MB Cache SATA 6.0Gb/s Internal HDD Hard Disk Drive 9RZ168-003.
Storage Capacity: 1TB
Rotation Speed: 7200RPM
Storage Interface: SATA 6.0Gb/s
Firmware: SN03
Cache: 64MB
Form Factor: 2.5"
Type: Internal Hard Disk Drive