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Seagate ST9640424AS, ST9750422AS Reliability, Agency certification, Free Fall Protection feature

Models: ST9500428AS ST9640422AS ST9750423ASG ST9750420AS ST9750420ASG ST9750424AS ST9640423AS ST9500424AS ST9640424AS ST9500423AS ST9640423ASG ST9500423ASG ST9750423AS ST9750422AS

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3.13

Reliability

 

 

 

Measurement type

Specification

 

 

Nonrecoverable read errors

1 per 1014 bits read, max.

Annualized Failure Rate (AFR)

0.5%

 

 

Load/Unload (U/UL)

 

25°C, 50% relative humidity

600,000 software-controlled power on/off cycles

 

 

50,000 hard power on/off cycles

32°C, 80% relative humidity

600,000 software-controlled power on/off cycles

5°C, 80% relative humidity

50,000 hard power on/off cycles

5°C, 10% relative humidity

 

55°C, 16% relative humidity

 

Warranty

 

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

 

 

following web page:

 

 

http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance

 

 

From this page, click on the “Verify Your Warranty” link. You will be asked to pro-

 

 

vide the drive serial number, model number (or part number) and country of pur-

 

 

chase. The system will display the warranty information for your drive.

 

 

 

3.13.1Free Fall Protection feature

The Free Fall Protection feature provides enhanced data protection against shock events that may occur while the drive is operating. This feature is designed to decrease the likelihood of data loss by detecting a free fall event and unloading the actuator before a shock takes place in falls of >8 inches (nominal). The drive uses a 0G sensor mounted on the printed circuit board assembly (PCBA) to sense this event.

To enable the Free Fall Protection feature on ST9750423ASG, ST9750420ASG, ST9640423ASG and ST9500423ASG models, use Set Features command 41h. To disable this feature, use Set Features command C1h.

Information about Free Fall Events that have occurred is available through SMART Attribute FEh.

Note. The Free Fall Protection feature is provided only on ST9750423ASG, ST9750420ASG, ST9640423ASG and ST9500423ASG models.

3.14Agency certification

3.14.1Safety certification

The drives are recognized in accordance with UL 60950-1 and CSA C22.2 (950) and meet all applicable sec- tions of IEC 60950-1 and EN60950-1 as tested by TUV North America.

3.14.2Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec- tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and the immunity levels are defined by EN 55024.

Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the directives when used in the test systems, we cannot guarantee that all systems will comply with the directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators should confirm EMC compliance and provide CE marking for their products.

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Momentus Product Manual, Rev. C

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Seagate ST9640424AS, ST9750422AS Reliability, Agency certification, Free Fall Protection feature, Safety certification
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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.