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Specifications
2.0
S
PECIFICATIONS
2.1
Performance Specifications
Average Latency
Rotational Speed
Data Transfer Rate (maximum)
- Buffer to Host
- Host to/from Drive
Interleave
Buffer Size
Error Rate - Unrecoverable
Spindle Start Time
- From Power-on to Drive Ready
- From Power-on to Rotational Speed
Spindle Stop Time
Load/Unload Cycles
1
As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface,
megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits
per second. Effective maximum SATA 3 Gb/s transfer rate calculated according to the Serial ATA specification
published by the SATA-IO organization as of the date of this specification sheet. Visit www.sata-io.org for details.
2
Defined as the time from power-on to the setting of Drive Ready and Seek Complete including calibration.
3
Defined as the time from power-on to when the full spindle rotational speed is reached.
4
Controlled unload at ambient condition.
4
1
2
3
4
RELEASED 10/21/10 (WD CONFIDENTIAL)
4.2 ms (nominal)
7200 RPM (nominal)
6 Gb/s maximum (WDxxxxAAKX)
3 Gb/s maximum (WD5000AAKS)
126 MB/s sustained (maximum)
1:1
16 MB
15
<1 in 10
bits read
8.5s average
5.5s average
5.1s average
300,000
XL500S
2679-701211-A06
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