HGST 0A35771-RFB 750GB SATAII 32MB. RAID 0A35771-RFB

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 continues 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 neighboring 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.

Features



Average latency



4.17 Millisecond


HDD capacity



750 GB


HDD interface transfer rate



3 Gbit/s


HDD number of heads



8


HDD size



3.5 "


HDD speed



7200 RPM


Interface



Serial ATA II


Mean time between failures (MTBF)



1200000 Hour


Read seek time



8.2 Millisecond


Start/stop cycles



50000


Storage drive buffer size



32 MB


Type



HDD


Operational conditions



Non-operating shock



300 G


Non-operating vibration



1.04 G


Operating shock



70 G


Operating temperature (T-T)



5 - 60 �C


Operating vibration



0.67 G


Storage temperature (T-T)



-40 - 70 �C


Package dimensions



Depth (package,cm)



3 cm


Gross Weight (Package, kg)



0.68 kg


Height (package,cm)



15 cm


Width (package,cm)



10.5 cm


Product dimensions



Net Weight (Product, kg)



0.5800000000000001 kg


Product Depth



14.7 cm


Product Height



2.61 cm


Product Width



10.16 cm


Vendor information



Brand Name


HGST


Warranty



1 Year(s)