Index

A

ACA 17 acoustics 6, 15 Active mode 12 AFR 16

Agency certification 16 Altitude 13

Altitude, nonoperating 6 Altitude, operating 6 Ambient temperature 6, 13 ambient temperature 9 Annualized Failure Rate 16 Annualized Failure Rate (AFR) 6 Areal density 5, 8

ATA data-transfer modes supported 5 ATA-standard commands 30

Australia/New Zealand Standard AS/NZS3548 1995 17

Australian Communication Authority (ACA) 17 Australian C-Tick 17

Average seek time 9 Average seek, read 5

B

bels 6

BIOS manufacturers 39 BPI 5

buffer 1, 5, 8 burst 1

Bytes per sector 5, 7

C

cables and connectors 20 Cache 5

cache 1, 8 capacity 7

case temperature 13 CE mark 16 certification 16 chemical substances 18 China RoHS directive 18 Class B computing device 17 commands 30 compatibility 16, 39 compatibility summary 39 compatibility test configurations 46 Conducted noise 11 Conducted RF immunity 15 Configuring the drive 19 connectors 20

CSA C22.2 (950) 16

current 5 cycles 16 Cylinders 7

D

data-transfer rates 1 DC power 10

Default logical geometry 7 density 5

diagnostic software 1 dimensions 21 Discs 5 dissipation 10 drive monitoring 1 drive self-test 1

E

Electrical fast transient 15 Electromagnetic compatibility 16 Electromagnetic Compatibility Directive (89/336/EEC)

16 Electromagnetic immunity 15 Electrostatic discharge 15 electrostatic discharge (ESD) 19 EN 55022, Class B 16

EN 55024 16

EN 60950 16 Environmental protection 18 Environmental specifications 13 error-correction algorithms 1 errors 6, 16

ESD 19

EU 16

European Union (EU) requirements 16

European Union Restriction of Hazardous Substanc- es 18

F

FCC verification 17

Federal Communications Commission 17 Formatted capacity 7

Formatted Gbytes 5

G

Gbytes 7 geometry 7 gradient 6 Guaranteed sectors 5, 7 guaranteed sectors 7

H

handling 19

Handling precautions 19

Momentus 5400 FDE.3 SATA Product Manual, Rev. A

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Seagate ST9160312AS, ST9320322AS, ST9120312AS manual Index

ST9120312AS, ST9160312AS, ST9320322AS specifications

The Seagate ST9320322AS, ST9160312AS, and ST9120312AS are hard disk drives (HDDs) designed for reliable storage solutions in various computing environments. These drives belong to the Barracuda line, known for their high performance and robust features.

The ST9320322AS is a 320GB, 2.5-inch SATA hard drive that operates at a speed of 7200 RPM. It has a 16MB cache buffer, enhancing data access speeds and allowing for efficient multi-tasking. This drive is particularly suitable for laptops, external drives, and other applications requiring high-capacity storage paired with portability. Its low power consumption makes it an ideal choice for mobile systems, contributing to longer battery life.

On the other hand, the ST9160312AS is a 160GB version, also a 2.5-inch SATA HDD running at 7200 RPM. Like the ST9320322AS, it features a 16MB cache, which optimizes performance for everyday computing tasks. This model is often utilized in gaming consoles and entry-level laptops, offering a balance of performance and affordability. With a height of only 9.5mm, it is designed to fit in ultrathin laptops while providing ample storage space for user data, applications, and multimedia files.

The ST9120312AS further reduces storage capacity to 120GB, while maintaining the same rotational speed of 7200 RPM. This HDD is designed for users looking for reliable, cost-effective storage solutions without compromising on performance. Like its counterparts, it features a 16MB cache and operates efficiently, making it suitable for applications that require moderate data storage, such as basic computing tasks and media storage.

All three models leverage Seagate’s advanced recording technology, which enhances data integrity and reliability. They also incorporate sophisticated error recovery tools that help prevent data loss, ensuring longevity and durability under various operating conditions. These drives support the SATA interface, which provides high-speed data transfer rates, making them compatible with a wide range of computing devices.

In conclusion, the Seagate ST9320322AS, ST9160312AS, and ST9120312AS hard drives represent a strong selection for users in need of reliable, efficient, and compact storage solutions. With their combination of high performance, energy efficiency, and advanced technologies, they continue to serve a vital role in modern computing architectures.