Seagate ST500LX009 ユーザーズマニュアル

S

EAGATE 

U

LTRA 

M

OBILE 

SSHD P

RODUCT 

M

ANUAL

, R

EV

. D

  6

 D

RIVE 

S

PECIFICATIONS 

All models

2

1

Recording method

Perpendicular

Recording density 

1885 Kb/in 

Track density 

366 ktracks/in avg

Areal density 

690 Gb/in

2 

avg

Spindle speed 

5400 RPM +/- 0.2%

Sustained data transfer rate 

100 MB/s max

I/O data-transfer rate 

600 MB/s max

 Height

5.0 +/- 0.2 mm (0.197 +/-.008 in) (Standard models)
5.2 +/- 0.2 mm (0.205 +/-.008 in) (FIPS models only)

 Width

69.85 +/- 0.25 mm (2.750 +/- 0.010 in)

 Length

100.35 +0.20 / -0.25 mm (3.951 +0.008 / -0.010 in)

Typical weight

93 g (0.205 lb)

Cache buffer

64 MB (64,768 KB)

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 average of at least 5000 measurements of seeks between random tracks, 

less overhead.

Interface

Serial ATA (SATA)

Track-to-track

1.5

Average

13.0

Average latency

5.6

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.