ST9500420ASG ATA Device
User Benchmarks
| Model | Type | Score | Seq. Read MB | Seq. Write MB | Read 4k64QD | Write 4k64QD | Read Access msek. | Write Access msek. |
| ST9500420ASG ATA Device | 500 | 183 | 76 | 81 | 0.89 | 0.76 | 9.75 | 4.97 |
The measurement of the ST9500420ASG ATA Device was carried out on Windows. Similar read and write speeds could certainly be achieved with the ST9500420ASG ATA Device under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the ST9500420ASG ATA Device should be used.
The ST9500420ASG is a hard drive from Seagate that offers specific features and functions for reliable data storage. Below you will find a comprehensive description of the technical details, functions, and application areas of this hard drive.
Technical details
1. Model and name:
- Model number: ST9500420ASG
- Manufacturer: Seagate
- Product name: Seagate Momentus 7200.4
2. Storage capacity:
- Capacity: 500 GB (Gigabytes)
3. Form factor and interface:
- Form factor: 2.5 inches (64 mm x 100 mm x 9.5 mm) - Standard for mobile devices such as laptops and portable external hard drives.
- Interface: SATA (Serial ATA) 3 Gb/s (SATA II)
4. Performance:
- Rotational speed: 7200 RPM (revolutions per minute)
- Cache: 16 MB
- Average access time: About 12 ms (milliseconds)
- Maximum data transfer rate: Up to 300 MB/s (depending on interface and specific operating conditions)
5. Storage technology:
- Platter technology: Two platters with two read heads.
- Data density: High, due to modern manufacturing technologies and high data density platters.
6. Reliability and durability:
- MTBF (Mean Time Between Failures): Up to 600,000 hours
- Operating temperature: 5°C to 60°C (41°F to 140°F)
- Shock resistance: Up to 900G operating, 3000G non-operating (shock resistance during operation and sleep)
7. Noise level:
- Operating noise: Approximately 25 dB(A)
- Idle noise: Approximately 22 dB(A)
Features
1. High performance:
- Fast rotation speed: At 7200 RPM, the hard drive offers high performance and fast data access times compared to 5400 RPM drives.
- Large cache: The 16 MB cache enables faster data processing and improves the overall performance of the hard drive.
2. Reliability:
- Error Correction: The hard drive uses advanced error correction technologies to ensure data integrity and extend the life of the hard drive.
- Shock Resistance: Designed to withstand shock and vibration, making it ideal for use in mobile devices.
3. Energy Efficiency:
- Energy Consumption: Low energy consumption compared to older models, extending battery life in laptops.
- Power Saving Modes: Supports various power saving modes to further reduce power consumption.
4. Compatibility:
- Operating Systems: Compatible with most modern operating systems, including Windows, macOS, and various Linux distributions.
- Devices: Ideal for use in laptops, portable external hard drives, and other mobile devices.
5. Data Integrity:
- SMART Monitoring: Supports SMART (Self-Monitoring, Analysis, and Reporting Technology) for hard drive health monitoring and error diagnosis.
Scope of application
1. Laptop upgrade:
- Expanded Storage: Ideal for upgrading laptops that require more storage space and better performance.
- Performance Enhancement: By switching to a 7200 RPM drive, users can benefit from faster boot and loading times.
2. Portable External Hard Drives:
- Mobility: Due to the 2.5 inch form factor, the hard drive is ideal for portable external cases designed to store and transport large amounts of data.
- Additional Storage: Can be used in external cases to provide additional storage space for various applications and data.
3. Data Processing and Backup:
- Data Backup: For backing up data and as a reliable backup medium.
- Data Intensive Applications: Suitable for use in systems that require high data transfer speeds, such as editing multimedia files.
4. System and data drives:
- Primary drive: Can be used as the main drive in a laptop or desktop to store the operating system and frequently used applications.
- Secondary drive: Can be used as an additional drive for data, games and other applications that benefit from higher speed.
5. Mobile use:
- Robustness: Ideal for use in mobile devices where robustness against shocks and vibrations is important.
Conclusion
The Seagate ST9500420ASG offers solid performance for a 2.5-inch hard drive and is particularly suitable for use in laptops and portable external enclosures. With a capacity of 500 GB, a rotation speed of 7200 RPM and a 16 MB cache, this hard drive represents a good balance between performance and capacity. It offers high reliability and energy efficiency, making it an excellent choice for storing data in various application scenarios.
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ST9500420ASG ATA Device and the compatible operating systems
Windows Server 2025, 2022, 2019, 2016, ... or 2008 and higher
Windows 12, 11, 10 or Windows 7 and higher
Linux (various distributions)
macOS (from version 10.6)
Please note that the exact functions and areas of application may vary depending on the firmware version and configuration of ST9500420ASG ATA Device.
The ST9500420ASG ATA Device is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the ST9500420ASG ATA Device regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.