ST9250421AS
User Benchmarks
| Model | Type | Score | Seq. Read MB | Seq. Write MB | Read 4k64QD | Write 4k64QD | Read Access msek. | Write Access msek. |
| ST9250421AS | 250 | 69 | 24 | 31 | 0.74 | 0.80 | 14.79 | 9.78 |
The measurement of the ST9250421AS was carried out on Windows. Similar read and write speeds could certainly be achieved with the ST9250421AS under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the ST9250421AS should be used.
ST9250421AS
The ST9250421AS is an internal hard drive (HDD) from Seagate Technology. This hard drive is designed for use in desktop PCs and laptops and offers a reliable and high-performance storage solution. Here is a comprehensive description of the ST9250421AS model, including technical details, features and areas of application:
Technical details
1. Model and manufacturer:
- Model: ST9250421AS
- Manufacturer: Seagate Technology
2. Capacity:
- Storage capacity: 250 GB (Gigabytes)
3. Interface:
- Type: SATA (Serial ATA)
- Version: SATA II (3 Gb/s), backwards compatible with SATA I (1.5 Gb/s)
4. Rotational speed:
- Speed: 5400 RPM (Revolutions Per Minute). This rotational speed is typical for hard drives used in laptops and some desktop PCs.
5. Cache memory:
- Size: 8 MB cache. The cache stores temporary data to speed up access to frequently used data.
6. Form factor:
- Size: 2.5 inches, which is the standard form factor for internal laptop hard drives, but can also be used in desktop PCs with corresponding installation bays.
7. Physical dimensions:
- Length: 100 mm
- Width: 69.85 mm
- Height: 9.5 mm
8. Weight:
- Weight: Approximately 100 to 150 grams
9. Power consumption:
- Operation: Typically about 2 to 2.5 watts
- Idle: About 0.6 to 1 watt
- Standby: Less than 0.5 watts
10. MTBF (Mean Time Between Failures):
- MTBF: About 600,000 hours, which means high reliability and longevity.
Features
1. Performance:
- Speed: With a speed of 5400 RPM, the hard drive offers balanced performance that is sufficient for everyday tasks such as operating system startup, application startup and file access.
- Cache memory: The 8 MB cache improves data access times and increases overall system performance by providing faster access to frequently used data.
2. Reliability:
- Error correction: Built-in error correction technologies ensure high data integrity and protect against data loss.
- Shock and vibration protection: The hard drive is designed to withstand shock and vibration, making it more robust for use in mobile devices such as laptops.
3. Energy efficiency:
- Power consumption: The low power requirements help extend battery life in laptops and reduce energy consumption in desktop PCs.
4. Low noise:
- Operating noise: The 5400 RPM speed generally results in lower operating noise compared to hard drives with higher speeds.
5. Technology:
- Advanced Format: Supports Advanced Format technology for improved storage density and error correction.
Areas of application
1. Laptops:
- Primary Storage: Ideal for use as the main hard drive in laptops to ensure adequate performance while maintaining low power consumption.
- Upgrade: Can be used to expand the storage capacity of an existing laptop or as a replacement for a faulty hard drive.
2. Desktop PCs:
- Secondary Storage: Also useful as additional storage in desktop PCs to provide space for data, backups or media files.
3. External Enclosure:
- Portable Storage: Can be built into an external hard drive store to create portable storage for data or backups.
4. Smaller Servers and NAS:
- Smaller Storage Systems: Suitable for smaller servers or Network Attached Storage (NAS) systems where extremely high performance requirements are not present.
5. Backup and Archiving:
- Data Backup: Useful for regular data backup and archiving, especially when storing documents, images and videos.
Important considerations
- Capacity: At 250GB, the capacity is sufficient for basic applications and data, but for users with larger storage needs or for modern applications, a higher capacity hard drive might make more sense.
- Performance: The 5400 RPM speed provides sufficient performance for most everyday tasks. For applications that require higher performance, such as gaming or intensive data processing, 7200 RPM hard drives or SSDs might be preferred.
- Compatibility: Make sure the hard drive fits into your existing system and has the required connectors and formats. Check the installation requirements and compatibility with your laptop or desktop PC.
The ST9250421AS from Seagate is a reliable and high-performance hard drive that is well suited for use in laptops and desktop PCs. Its combination of capacity, power efficiency and reliability makes it a solid choice for a variety of storage needs.
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ST9250421AS 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 ST9250421AS.
The ST9250421AS is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the ST9250421AS regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.