Western Digital
Western Digital WD400JD 40GB SATA HDD (20-Pack)
Reliable Storage with the WD Caviar Blue WD400JD Hard Drive The WD Caviar Blue WD400JD offers dependable internal storage for your computer system. With a capacity of 40 GB, this 3.5" hard drive operates at 7200 RPM and features an 8 MB buffer for smooth and efficient data access. The SATA-300 i...
$24.99*
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.
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Overview
Reliable Storage with the WD Caviar Blue WD400JD Hard Drive
The WD Caviar Blue WD400JD offers dependable internal storage for your computer system. With a capacity of 40 GB, this 3.5" hard drive operates at 7200 RPM and features an 8 MB buffer for smooth and efficient data access. The SATA-300 interface ensures fast data transfer rates, making it a suitable choice for various applications.
- Capacity: 40 GB
- Interface: SATA-300
- Form Factor: 3.5"
- RPM: 7200 RPM
- Buffer: 8 MB
Key Features
Sold Individually
Specifications
Brand
Western Digital
Model Number
WD400JD
Capacity
40GB
Interface
SATA
Pros & Cons
👍 Pros
- This product offers a substantial quantity with a 20-pack of hard drives, ideal for bulk deployments or system builders.
- Each drive provides a 40GB storage capacity, which can be suitable for legacy systems or specific low-capacity storage needs.
- The drives utilize the SATA interface, ensuring broad compatibility with many computer systems and motherboards.
- The Western Digital brand is well-known for producing reliable storage solutions.
- Being sold as a multi-pack, it can streamline procurement for projects requiring numerous identical drives.
👎 Cons
- With only 40GB per drive, the capacity is extremely low by modern standards, limiting its use for contemporary applications or operating systems.
- The WD400JD model is likely an older generation product, which may not offer the same performance or longevity as newer drives.
- No information is provided about the rotational speed (RPM) or cache size, which are crucial performance indicators for hard drives.
- The product is explicitly stated as "Sold Individually," which contradicts the "20-Pack" in the title, causing potential confusion for buyers.
- Energy efficiency and noise levels of this older drive model are not specified.
Frequently Asked Questions
What is the storage capacity of each hard drive in this pack?
Each hard drive in the Western Digital WD400JD 20-Pack offers a storage capacity of 40GB.
What interface do these Western Digital hard drives use?
These hard drives utilize the SATA interface, ensuring compatibility with many standard computer systems.
Are these drives sold as a single unit or in a bundle?
Despite the "20-Pack" in the title, the product features state that they are "Sold Individually," which could indicate they are purchased one at a time from this listing.
Is this hard drive model suitable for modern operating systems and large files?
With only 40GB capacity, these drives are generally too small for modern operating systems, large applications, or extensive media files.
What is the brand of these hard drives?
These hard drives are manufactured by Western Digital, a reputable brand in the storage industry.
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