WDC WD6401AALS-00L3B SCSI Disk Device
User Benchmarks
| Model | Type | Score | Seq. Read MB | Seq. Write MB | Read 4k64QD | Write 4k64QD | Read Access msek. | Write Access msek. |
| WDC WD6401AALS-00L3B SCSI Disk Device | 640 | 218 | 104 | 79 | 1.30 | 1.43 | 7.36 | 2.95 |
The measurement of the WDC WD6401AALS-00L3B SCSI Disk Device was carried out on Windows. Similar read and write speeds could certainly be achieved with the WDC WD6401AALS-00L3B SCSI Disk Device under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the WDC WD6401AALS-00L3B SCSI Disk Device should be used.
WDC WD6401AALS-00L3B SCSI Disk Device
The WDC WD6401AALS-00L3B is an internal 3.5-inch hard drive from Western Digital in the WD Caviar Black series. Despite the name "SCSI Disk Device", this is a hard drive with SATA interface. This hard drive is known for its high performance and reliability, making it a popular choice for performance-oriented desktop PCs and workstations.
Here is a detailed description, including technical details, features and application areas of the WDC WD6401AALS-00L3B:
Technical details and specifications
1. Product type:
- The WDC WD6401AALS-00L3B is an internal 3.5-inch SATA hard drive from the WD Caviar Black series.
2. Storage capacity:
- The hard drive offers a capacity of 640 GB. This provides enough space for the operating system, applications, games and a variety of data.
3. Form factor:
- The hard drive has the 3.5 inch form factor, which is used for desktop computers and external enclosures. The exact dimensions are typically about 147 mm x 101.6 mm x 26.1 mm (length x width x height).
4. Interface:
- The hard drive uses the SATA-II (SATA 3Gb/s) interface, which enables a maximum data transfer rate of up to 3 Gb/s (300 MB/s). The SATA II interface is backwards compatible with SATA I and offers better performance compared to SATA I.
5. Rotational Speed:
- The hard drive has a rotational speed of 7200 rpm. This speed ensures fast data transfer and fast access to stored data.
6. Cache Memory:
- The hard drive is equipped with a 32 MB cache. The cache temporarily stores frequently accessed data, which increases system performance by speeding up access to this data.
7. Transfer Rate:
- The maximum transfer rate is up to 300 MB/s, which is made possible by the SATA II interface and the internal data processing capacity of the hard drive.
8. Reliability:
- The hard drive has a MTBF (Mean Time Between Failures) of approximately 1,000,000 hours. This figure indicates how long the hard drive should operate reliably without failure under normal operating conditions.
9. Shock resistance:
- The shock resistance during operation is approximately 65G for 2ms. This protects the data from physical shocks and vibrations that may occur during operation.
10. Operating temperature:
- The hard drive can operate in a temperature range of 0 to 60°C, which ensures that it functions reliably under normal operating conditions.
Features
1. High capacity:
- With a capacity of 640GB, the hard drive offers generous storage space for the operating system, programs, game data and personal files.
2. Outstanding performance:
- The 7200 RPM rotation speed and 32MB cache offer fast data access times and high data transfer rates, which improves system performance and ensures fast response times for applications.
3. Energy efficiency:
- The hard drive offers balanced performance with energy efficiency, meaning it is both powerful and energy efficient, which is important for desktop systems.
4. Compatibility:
- The use of the SATA II interface enables broad compatibility with different systems and ensures easy integration into existing desktop computers.
5. Reliability and durability:
- With a high MTBF and good shock resistance, the hard drive offers reliability and a long service life, even under intensive use and physical shock.
Application area
1. Desktop computers:
- The WDC WD6401AALS-00L3B is ideal for desktop computers where it can be used as the main hard drive or as an additional storage option for applications, games and data.
2. Performance-oriented systems:
- The hard drive is well suited for performance-oriented systems, such as workstations, that require high data transfer rates and fast access times.
3. Storage Upgrades:
- It can be used as an upgrade for older systems to provide more storage space and better performance.
4. Backup and Archiving Tasks:
- The hard drive can also be used for backup and archiving tasks to back up data regularly and increase data security.
5. General Data Storage:
- With a capacity of 640 GB, the hard drive is well suited for general data storage, including documents, photos, music and videos.
Conclusion
The WDC WD6401AALS-00L3B is a high-performance 3.5-inch hard drive from Western Digital that comes with a capacity of 640 GB, a rotation speed of 7200 RPM and a 32 MB cache. It offers high performance with fast data transfer rates and excellent reliability. Its SATA II interface ensures wide compatibility with various systems, while its high MTBF and shock resistance ensure longevity and resilience. This hard drive is ideal for desktop computers, performance-oriented systems, memory upgrades, backup solutions and general data storage.
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WDC WD6401AALS-00L3B SCSI Disk 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 WDC WD6401AALS-00L3B SCSI Disk Device.
The WDC WD6401AALS-00L3B SCSI Disk Device is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the WDC WD6401AALS-00L3B SCSI Disk Device regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.