Hitachi Ultrastar A7K1000 SATA Hard Drive 0A35770
Capacity: 500GB
Spindle Speed: 7,200RPM
Interface Type: SATA
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 42-85
Average Seek Time (read/write ms): 8.5
Electrical Interface Speed: SATA 300 – 3.0Gbps
On-Board Cache: 32MB
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.
Hitachi p/n: 0A36071
HUA71050KLA330
Drive specification |
0A35770 / HUA721050KLA330 |
Formatted Gbytes (512 bytes/sector) |
500 |
Bytes per sector |
512 |
Read/write heads |
6 |
Data Disks |
3 |
Spindle speed (RPM) |
7,200 |
Internal data transfer rate (Mbits/sec max) |
1070 |
I/O data transfer rate) |
3.0Gb/s |
Cache buffer |
32 Mbytes |
Height (max) |
26.1 mm |
Width (max) |
101.6 mm |
Length (max) |
147 mm |
Weight (max) grams |
700 |
Average seek, read (msec typical) |
8.5 |
Startup current (typical) 12V (peak) |
2.0 amps |
Idle mode (typical) watts |
7.3 |
Ambient temperature |
5° to 60 °C (op.) –40° to 70 °C (nonop.) |
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