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6 Momentus Thin Series SATA Product Manual, Rev. B
2.6 Physical characteristics
Drive specification
Height (mm)
(in)
6.8 +/-0.2
0.268 +/-0.0079
Width (mm)
(in)
69.85 +/-0.25
2.75 +/-0.0098
Length (mm)
(in)
100.35 +0.20/-0.25
3.951 +0.008/-0.010
Weight (max)
ST92503010AS and ST91603010AS
92.0 g
0.203 lb
2.7 Seek time
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using
drive diagnostics. The specifications in the table below are defined as follows:
• Track-to-track seek time is an average of all
possible single-track seeks in both directions.
• Average seek time is a true statistical random aver
age of at least 5000 measurements of seeks between
random tracks, less overhead.
Table 2: Typical seek times
Typical seek times (ms) Read
Track-to-track 1
Average 14
Full-stroke 30 (max)
Average latency 5.56
Note. These drives are designed to consistently meet the seek times represented in this manual. Physical
seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted
values. However, due to the manner in which these drives are formatted, benchmark tests that
include command overhead or measure logical seeks may produce results that vary from these
specifications.
2.8 Start/stop times
Time to ready Typical
Max @ 25
°C
Power-on to Ready (sec) 3.4 3.6
Standby to Ready (sec) 1.8 2.0