Seagate ST9250421ASG ユーザーズマニュアル

Momentus 7200.3 SATA 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.

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

and formatting.

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, 
where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-
bit addressing support of drives with capacities over 137 Gbytes.

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

5 years on distribution units.
To determine the warranty for a specific drive, use a web browser to access the following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive serial num-
ber, model number (or part number) and country of purchase. The system will display the warranty infor-
mation for your drive.

Supports Hotplug opera-
tion per Serial ATA Revision 
2.6 specification

Yes (requires COMRESET from host after a hotplug event)

ST9320421AS and ST9320421ASG

320 Gbytes

625,142,448

512 

ST9250421AS and ST9250421ASG

250 Gbytes

488,397,168

512 

ST9200421AS and ST9200423ASG

200 Gbytes

390,721,968

512 

ST9160411AS and ST9160411ASG

160 Gbytes

312,581,808

512 

ST9120411AS and ST9120411ASG

120 Gbytes

234,441,648

512 

ST980411AS and ST980411ASG

80 Gbytes

156,301,488

512