Seagate ST9500423ASG, ST9750422AS, ST9750424AS Drive specifications, Specification summary table

Page 10

3.0Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power.

3.1Specification summary table

The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.

Table 1: Drive specifications for 750, 640 and 500 GB models

 

 

ST9640424AS

ST9750422AS

ST9500424AS

 

ST9750423AS

ST9640423AS

ST9750420AS

ST9500423AS

Drive specification

ST9750423ASG

ST9640423ASG

ST9750420ASG

ST9500423ASG

 

 

 

 

 

Formatted GB

750

640

750

500

 

 

 

 

 

Guaranteed sectors

1,465,149,168

1,250,263,728

1,465,149,168

976,773,168

 

 

 

 

 

Bytes per sector (logical/physical)

512/4K

 

 

 

 

 

 

 

 

Physical read/write heads

4

 

 

4/3

 

 

 

 

 

Discs

2

 

 

 

 

 

 

 

 

Cache (MB)

16

 

 

 

 

 

 

 

 

Recording density in BPI (max)

1,586k

 

 

 

 

 

 

 

 

Track density TPI (tracks/inch max)

341k

 

 

 

 

 

 

 

 

Areal density (Gb/in2 max)

541

 

 

 

Spindle speed (RPM)

5400

 

7200

 

 

 

 

 

 

Average latency (ms)

5.6

 

4.2

 

 

 

 

 

 

Internal transfer rate (Gb/s max)

1130

950

1305

1305

 

 

 

 

 

I/O data transfer rate (Gb/s max)

3.0

 

 

 

 

 

 

 

ATA data-transfer modes supported

SATA 1.0, Serial ATA Revision 2.6

 

 

 

PIO modes 0–4

 

 

 

 

Multiword DMA modes 0–2

 

 

 

Ultra DMA modes 0–6

 

 

 

 

 

 

 

Height

9.5 +/- 0.2 mm (0.370 +/-.008 in)

 

 

 

 

 

 

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)

 

 

 

 

 

 

Weight

115 g (0.254 lb)

 

 

 

 

 

 

 

 

Power-on to ready (sec typical)

3.6

 

4.0

 

 

 

 

 

 

Standby to ready (sec typical)

2.5

 

3.0

 

 

 

 

 

 

Track-to-track seek time, read (ms typ)

1.5

 

 

 

 

 

 

 

 

Average seek, read (ms typical)

11.0

 

 

 

 

 

 

 

 

Average seek, write (ms typical)

13.0

 

 

 

 

 

 

 

 

Startup current, +5V (max)

1.0A

 

 

 

 

 

 

 

 

Seek power (typical)

1.9W

 

2.5W

 

 

 

 

 

 

Read power (typical)

1.6W

 

2.1W

 

 

 

 

 

 

4

Momentus Product Manual, Rev. C

Page 9 Page 11
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Page 9 Page 11
Contents Momentus Standard models Free-fall sensor modelsRevision history Revision Date Sheets affected or commentsContents Momentus Product Manual, Rev. C List of Figures Page Seagate Technology support services Seagate Online Support and ServicesIntroduction Standard models Free Fall Protection modelsAbout the Serial ATA interface Specification summary table Drive specificationsDrive specifications for 750, 640 and 500 GB models Altitude, nonoperating Formatted capacity Default logical geometryLBA mode Physical organizationDrive specification Physical characteristicsRecording and interface technology Typical seek times Seek timeStart/stop times Typical seek times ms ReadPower specifications Typical current profile Conducted noise Voltage toleranceActive mode Power-management modesPower management modes Idle modeEnvironmental specifications Nonoperating shock ShockOperating shock VibrationElectromagnetic immunity Drive A-weighted Sound Power Levels SWL, BAAcoustics Test for Prominent Discrete Tones PDTsReliability Free Fall Protection featureSafety certification Agency certificationAustralian C-Tick N176 Korean RRLFCC verification European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment China Restriction of Hazardous Substances RoHS DirectiveConfiguring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingSerial ATA Sata interface Hot-Plug compatibilitySignal Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions Pin Function DefinitionSupported ATA commands Command name Command code in hex ATA-standard commandsCommand name Command code in hex ATA-standard security commandsIdentify Device command Word Description ValueXxxxH Fffeh Description if bit is set to Bit Set Features command Set Features command valuesA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Momentus Product Manual, Rev. C Index ITE TPI Momentus Product Manual, Rev. C Page Seagate Technology LLC
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ST9500428AS, ST9640422AS, ST9750423ASG, ST9750420AS, ST9750420ASG specifications

The Seagate ST9750422AS, ST9750423AS, ST9500423ASG, ST9640423ASG, and ST9500423AS are part of Seagate's popular lineup of SATA hard drives designed for consumer and enterprise applications. These drives are recognized for their reliability, performance, and advanced technologies, making them suitable for a variety of storage needs.

The ST9750422AS and ST9750423AS models are 7200 RPM drives with a storage capacity of 750 GB, while the ST9500423ASG and ST9640423ASG offer different capacities and characteristics tailored for specific uses. The ST9500423ASG typically features a 500 GB capacity, while the ST9640423ASG is often found with 640 GB of storage space. These drives support the Serial ATA interface, ensuring high-speed data transfer rates and compatibility with a broad range of host systems.

All drives in this series feature a robust 32 MB cache that enhances performance by allowing faster access to frequently used data. This cache is critical, especially for read/write operations that require rapid data retrieval, making these models well-suited for tasks ranging from simple home computing to more intensive applications such as gaming and multimedia editing.

The ST9750422AS and ST9750423AS models are built with technologies such as Advanced Format, which improves storage capacity and enhances error correction. Additionally, these drives employ Seagate's PowerBalance and PowerFin technologies, enabling efficient power management without compromising performance.

Reliability is a core characteristic of the Seagate ST9XXX series, featuring a mean time between failures (MTBF) of over a million hours, which translates to increased system uptime and reduced potential for data loss. The drives also include features such as Native Command Queuing (NCQ), which optimizes the processing of multiple read/write commands, further boosting performance during heavy workloads.

In conclusion, the Seagate ST9750422AS, ST9750423AS, ST9500423ASG, ST9640423ASG, and ST9500423AS hard drives represent a blend of speed, reliability, and advanced technology, making them an excellent choice for users looking for dependable storage solutions. Whether for a home PC or an enterprise server, these drives continue to deliver outstanding performance and value in a competitive market.
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