Hitachi Travelstar Z7K320 320GB 2.5in SATA 7200RPM 16MB Notebook HDD - OEM

Travelstar Z7K320 is designed as a direct replacement for standard HDDs, for use in notebook PCs, external storage and compact systems. The Z7K320 offers design flexibility to accommodate thinner and more robust devices/systems. Travelstar Z7K320 provides the right balance of performance and capacity to meet the multi-tasking needs of commercial and consumer users on the go.

Travelstar Z7K320 is the fourth generation to feature Bulk Data Encryption (BDE) for hard-drive-level data security. Hitachi has designed these self-encrypting drives to the Trusted Computing Group (TCG) opal storage security specification, which is expected to become an industry standard. With BDE, the data is scrambled using a key as it is written to the disk, then descrambled with the key as it is retrieved, giving users the high level of data protection available. It also speeds and simplifies the drive re-deployment process. By deleting the encryption key, the data on the drive is rendered unreadable, thereby eliminating the need for time-consuming data-overwrite.

Technical Specifications
Device Type: Hard drive - internal
Form Factor: 2.5"
Capacity: 320 GB
Interface Type: Serial ATA-300
Buffer Size: 16 MB
Bytes per Sector: 512
Features: TrueTrack servo technology
Drive Transfer Rate: 300 MBps (external)
Internal Data Rate: 167 MBps
Seek Time: 13 ms (average) / 25 ms (max)
Track-to-Track Seek Time: 1 ms
Average Latency:  4.2 ms
Spindle Speed: 7200 rpm
Start / Stop Cycles: 600,000
Interfaces:  1 x Serial ATA-150 - 7 pin Serial ATA
Compatible Bays: 1 x internal - 2.5"
Min Operating Temperature:  0 °C
Max Operating Temperature:  60 °C
Shock Tolerance: 225 g @ 1ms half-sine pulse (operating) / 1000 g @ 1ms half-sine pulse (non-operating)

Dimensions
Width: 7 cm
Depth: 10 cm
Height: 7 cm