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HP J7948A 20GB IDE Ultra ATA/100 (ATA-6) 4200 2.5-inch 2MB Hard Drive
- Capacity: 20GB
- Interface: IDE Ultra ATA/100 (ATA-6)
- Form Factor: 2.5-inch
- Rotational Speed: Typically 4200 or 5400 RPM (common for this era)
- Cache: 2MB
- Data Transfer Rate: Up to 100MB/s (ATA/100)
- Reliability: Designed for general computing and storage needs
- Compatibility: Suitable for laptops and other systems supporting IDE drives
- Connectors: Standard 40-pin IDE data connector and 4-pin Molex power connector
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Product Overview
The HP J7948A is a 20GB IDE Ultra ATA/100 (ATA-6) 2.5-inch hard drive with 2MB cache. It is designed for use in various computing devices, offering reliable storage for operating systems and applications.
Technical Information
| Capacity | 20GB |
| Interface | IDE Ultra ATA/100 |
Additional Specifications
| Form Factor | 2.5-inch |
| Cache | 2MB |
Product Description
The HP J7948A is a 20GB 2.5-inch hard disk drive that utilizes the IDE Ultra ATA/100 interface, also known as ATA-6. This interface standard provided significantly improved data transfer speeds compared to its predecessors, reaching up to 100 megabytes per second, making it suitable for the computing needs of its time. The drive features a 2MB cache buffer, which helps to improve performance by temporarily storing frequently accessed data, reducing the need for the drive head to seek data on the platters repeatedly. Designed primarily for laptops and other portable computing devices that employed IDE interfaces, this drive offered a respectable storage capacity for operating systems, applications, and user data during the late 1990s and early 2000s. Its 2.5-inch form factor is standard for mobile computing, allowing it to fit into compact device chassis. The rotational speed, typically around 4200 or 5400 RPM for drives of this class, provided a balance between performance and power consumption, which was crucial for battery-powered devices. While IDE technology has largely been superseded by SATA and NVMe interfaces in modern computing, drives like the HP J7948A were workhorses for their era. They provided essential storage for a generation of personal computers and were known for their relative durability and ease of integration. This drive represents a piece of computing history, offering a glimpse into the storage solutions that powered the digital revolution.
