HGST A7K1000 500GB SATA 3.0 Gb/s 0A35770 Leaflet

Product codes
0A35770
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Record capacity, enterprise-class reliability 
The Ultrastar™ A7K1000 delivers up to one terabyte of storage capacity in a standard 
3.5-inch form factor, filling a vital need for high-density storage in the enterprise. As the third 
generation design, based on the popular Deskstar™ E7K500, the Ultrastar A7K1000 contin-
ues to set the standard in enterprise-class reliability and performance for lower duty cycle 
enterprise applications. With a unique 5-platter design, Hitachi has relaxed the bit densities 
to achieve higher reliability. The Ultrastar A7K1000 is built using the industry’s most reliable 
perpendicular magnetic recording (PMR) recording heads and media. 
 
Performance targeted for the enterprise
The Ultrastar A7K1000 features a 3 Gb/s SATA interface supporting key features in the 
Serial-ATA specification including Native Command Queuing (NCQ), staggered spin-up and 
hot-swap capability. The Ultrastar A7K1000 allows for configuration scalability and with the 
same physical connector as Serial Attached SCSI (SAS) drives, it’s ideal for use in mixed-
drive environments.
In multi-drive environments, rotational vibration, which results from the vibration of neigh-
boring drives in a system, can degrade hard drive performance. To aid in maintaining high 
performance, the Ultrastar A7K1000 incorporates enhanced Rotational Vibration Safeguard 
(RVS) technology providing up to 50% improvement over the previous generation against 
performance degradation, leading the industry.
Finally, the Ultrastar A7K1000 is targeted at 1.2 million hours MTBF and provides the 
industry’s most comprehensive 5-year warranty.
www.hitachiGST.com
1.0 TB, 750 and 500 GB | 7200 RPM  
3 Gb/s SATA
Highlights
Up to 1 terabyte of capacity 
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3 Gb/s SATA for configuration flexibility
Targeted 1.2 million hours MTBF 
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Enhanced Rotational Vibration Safeguard 
(RVS) for robust performance in multi-drive 
environments
5-year warranty
Applications/Environments
RAID arrays
Tiered storage
Nearline storage
Disk-to-disk back up
Network Attached Storage (NAS)
Data warehousing
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Hitachi Ultrastar
 A7K1000
World’s first terabyte hard drive for the enterprise –
Ideal for lower duty cycle storage in enterprise environments
Feature / Function
Benefits
Capacity
Up to 1.0 TB of storage 
Highest capacity available in a single hard drive 
Reliability 
Advanced PMR heads & media 
Excellent soft error rate for improved reliability  
 
 
& performance
 
Self-Protection Throttling (SPT) 
Monitors and manages I/O to maximize reliability  
 
 
& performance
 
Thermal Fly-height Control (TFC) 
Better soft error rate for improved reliability  
 
 
& performance
 
Fluid Dynamic Bearing (FDB) Motor 
Improved acoustics & positional accuracy
 
Load/unload ramp 
Protects user data when power is removed
Performance 
Rotational Vibration Safeguard (RVS) 
Maintains high performance in multi-drive systems
3 Gb/s
SATA interface 
300 MB/s burst data rate for faster data access
32 MB cache buffer 
Enhanced data transfer performance
Features and Benefits
3.5-INCH ENTERPRISE HARD DISK DRIVES