Word

Description

Value

 

 

 

 

 

27–46

Drive model number: (40 ASCII characters, padded with

ST9500420AS

 

 

blanks to end of string)

ST9500420ASG

 

 

 

ST9320423AS

 

 

 

ST9320423ASG

 

 

 

ST9250410AS

 

 

 

ST9250410ASG

 

 

 

ST9160412AS

 

 

 

ST9160412ASG

 

 

 

ST9120410AS

 

 

 

ST9120410ASG

 

 

 

ST980412AS

 

 

 

ST980412ASG

 

 

 

 

 

47

(Bits 7–0) Maximum sectors per interrupt on Read multiple

8010H

 

 

and Write multiple (16)

 

 

48

Reserved

0000H

 

49

Standard Standby timer, IORDY supported and may be dis-

2F00H

 

 

abled

 

 

50

ATA-reserved

0000H

 

51

PIO data-transfer cycle timing mode

0200H

 

52

Retired

0200H

 

53

Words 54–58, 64–70 and 88 are valid

0007H

 

54

Number of current logical cylinders

xxxxH

 

55

Number of current logical heads

xxxxH

 

56

Number of current logical sectors per logical track

xxxxH

 

57–58

Current capacity in sectors

xxxxH

 

59

Number of sectors transferred during a Read Multiple or

xxxxH

 

 

Write Multiple command

 

 

60–61

Total number of user-addressable sectors

ST9500420AS

= 0FFFFFFFh

 

This field contains a value that is one greater than the total

ST9500420ASG = 0FFFFFFFh

 

number of user-addressable sectors. The maximum value

ST9320423AS

= 0FFFFFFFh

 

that shall be placed in this field is 0FFFFFFFh. The

ST9320423ASG = 0FFFFFFFh

 

0FFFFFFFh value applies to all capacities over 137Gbytes

ST9250410AS

= 0FFFFFFFh

 

(see Section 2.2 and 2.3 for related information).

ST9250410ASG = 0FFFFFFFh

 

 

ST9160412AS

= 0FFFFFFFh

 

 

ST9160412ASG = 0FFFFFFFh

 

 

ST9120410AS

= 234,441,648

 

 

ST9120410ASG = 234,441,648

 

 

ST980412AS

= 156,301,488

 

 

ST980412ASG

= 156,301,488

 

 

 

 

62

Retired

0000H

 

63

Multiword DMA active and modes supported

xx07H

 

 

(see note following this table)

 

 

64

Advanced PIO modes supported (modes 3 and 4 supported)

0003H

 

65

Minimum multiword DMA transfer cycle time per word

0078H

 

 

(120 nsec)

 

 

66

Recommended multiword DMA transfer cycle time per word

0078H

 

 

(120 nsec)

 

 

67

Minimum PIO cycle time without IORDY flow control

00F0H

 

 

(240 nsec)

 

 

68

Minimum PIO cycle time with IORDY flow control (120 nsec)

0078H

 

Momentus 7200.4 SATA Product Manual, Rev. C

27

Page 33
Image 33
Seagate ST903203N1A2ASRK, ST980412ASG, ST9500420ASG, ST9320423ASG, ST9250410ASG, ST9160412AS, ST9160314ASIM manual XxxxH

ST903203N1A2ASRK, ST905003N1A1ASRK, ST9160412AS, ST9250410ASG, ST9160412ASG specifications

Seagate technology has long been at the forefront of data storage solutions, and its line of hard drives exemplifies the blend of reliability, performance, and storage capacity. Among these, the Seagate ST9500420AS, ST9120410ASG, ST9320423AS, ST90250N1A1ASRK, and ST980412AS stand out as quality options suitable for various computing needs.

The Seagate ST9500420AS is a 500GB 2.5-inch SATA hard drive designed primarily for laptop users. It features a rotational speed of 5400 RPM, balancing performance with energy efficiency. The adoption of Advanced Format technology enhances its sector size, allowing for improved data integrity and capacity. Additionally, the drive supports Native Command Queuing (NCQ), which can optimize the drive's performance by managing multiple commands more efficiently.

Another notable model is the ST9120410ASG, a 120GB hard drive that caters to users seeking a compact yet efficient storage solution. Primarily used in laptops and external enclosures, this drive also operates at 5400 RPM. Combining a 2.5-inch form factor with a SATA interface, it allows for swift data transfers while maintaining low power consumption, which is essential for portable devices.

The ST9320423AS is another 2.5-inch hard drive, boasting a capacity of 320GB. This drive is notable for its shock protection features, which safeguard data against physical impacts, making it ideal for mobile computing environments. Like its counterparts, it also utilizes SATA technology and operates efficiently, ensuring that users have access to reliable storage without compromising on performance.

For more specialized applications, the ST90250N1A1ASRK provides a substantial 250GB capacity in a compact form factor. Engineered for demanding environments, this drive showcases Seagate's commitment to creating robust, long-lasting products. It combines speed with durability, representing an excellent choice for systems requiring frequent read/write operations.

Finally, the ST980412AS is a 80GB variant that remains a staple for users needing reliable data storage without excessive capacity. This drive supports similar technologies as its peers, ensuring effective performance for everyday computing tasks. Its lightweight design and efficient power utilization make it suitable for both personal and professional use.

In summary, these Seagate hard drives embody a blend of advanced technologies, extensive capacities, and reliability. Whether for casual use, professional applications, or portable computing, each model offers unique features tailored to meet diverse user needs. With a history of innovation, Seagate remains a leader in the data storage sector, ensuring that users have access to high-quality solutions across the board.