Specifications
XL500S
4
RELEASED 10/21/10 (WD CONFIDENTIAL)
2679-701211-A06
2.0
S
PECIFICATIONS
2.1
Performance Specifications
Average Latency
4.2 ms (nominal)
Rotational Speed
7200 RPM (nominal)
Data Transfer Rate (maximum)
1
- Buffer to Host
- Host to/from Drive
6 Gb/s maximum (WDxxxxAAKX)
3 Gb/s maximum (WD5000AAKS)
126 MB/s sustained (maximum)
Interleave
1:1
Buffer Size
16 MB
Error Rate - Unrecoverable
<1 in 10
15
bits read
Spindle Start Time
- From Power-on to Drive Ready
2
- From Power-on to Rotational Speed
3
8.5s average
5.5s average
Spindle Stop Time
5.1s average
Load/Unload Cycles
4
300,000
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.
