Seagate ST9640422AS ユーザーズマニュアル

Momentus Product Manual, Rev. C

5

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment 

and formatting.

**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and 

power to operational levels.

***Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby 

modes will not contribute to battery power consumption.

Write power (typical)

1.85W

2.4W

Idle mode, low power (typical)

0.55W

0.70W

Standby mode (typical)

0.15W ***

Sleep mode (typical)

0.15W ***

Voltage tolerance (including noise)

+5V ± 5%

Ambient temperature 

0°C to 60°C (operating)

 

–40°C to 70°C (nonoperating)

Temperature gradient (°C/hour max)

20°C (operating), 35°C (nonoperating)

Relative humidity

5% to 95% (operating and nonoperating)

Relative humidity gradient

30% per hour max

Wet bulb temperature (°C max)

37.7 °C (operating), 40 °C (nonoperating)

Altitude, operating

–304.8 m to 3,048 m (–1,000 ft to 10,000

+ 

ft)

Altitude, nonoperating 

 

(meters below mean sea level, max)

–304.8 m to 12,192 m (–1000 ft to 40,000

+ 

ft)

Shock, operating (Gs max at 2 ms)

350

Shock, nonoperating (Gs max at 2 ms)

800

Shock, nonoperating (Gs max at 1 msec)

1000

Shock, nonoperating (Gs max at 0.5 ms)

1000

Vibration, operating

2.0 G (0 to peak, 5–200 Hz)

 

1.0 G (0 to peak, 200–500 Hz)

Vibration, nonoperating

5 Gs (0 to peak, 5–500 Hz)

Drive acoustics, sound power (bels)

   Idle**

2.3 (typical)

 

2.5 (max)

   Performance seek

2.6 (typical)

 

2.7 (max)

Nonrecoverable read errors

1 per 10

14 

bits read

Annualized Failure Rate (AFR)

0.5%

Load/Unload (U/UL) cycles

 

 
25°C, 50% relative humidity

 

 

 
32°C, 80% relative humidity 

 

5°C, 80% relative humidity 

 

5°C, 10% relative humidity 

 

55°C, 16% relative humidity 

 
600,000 software-controlled power on/off cycles

 

50,000 hard power on/off cycles

 

 
600,000 software-controlled power on/off cycles

 

50,000 hard power on/off cycles

 

Warranty

To determine the warranty for a specific drive, use a web browser to access the following 
web page: 

From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive 
serial number, model number (or part number) and country of purchase. The system will dis-
play the warranty information for your drive.

Supports Hotplug operation per

 

Serial ATA Revision 2.6 specification

Yes (requires COMRESET from host after a hotplug event)