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Spinpoint M8U-Internal Product Manual REV 3.4
8
SPECIFICATIONS
3.4 Performance Specifications
Table 3-4: Performance Specifications
DESCRIPTION
ST320LM008
ST500LM016
ST750LM024
ST1000LM026
Average Latency
5.6 ms
Data Transfer Rate (Max)
buffer to/from media
host to/from buffer
145MB/s
500 MB/s
Rotational Speed
5,400 RPM Class
Buffer size
8MB
NOTES: ∗ Seek time is defined as the time from the receipt of a read, write or seek command until the
actuator has repositioned and settled on the desired track with the drive operating at nominal
DC input voltages and nominal operating temperature.
∗ Average seek time is determined by averaging the time to complete 1,000 seeks of random
length.
∗ Average latency is the time required for the drive to rotate 1/2 of a revolution and on average is
incurred after a seek completion prior to reading or writing user data.
∗ Spin up time is the time elapsed between the supply voltages reaching operating range and the
drive being ready to accept all commands.
∗ Actual rotational speed can be different a little.