Western Digital

Western Digital WD1200JBRTL 120GB EIDE Hard Drive

3.1 (11 reviews)

Reliable Storage for High-Performance ComputingExperience reliable and high-performance storage with the Western Digital 120 GB EIDE Hard Drive. Designed to maximize desktop computer performance, this drive is ideal for gaming, video editing, and file server applications. Specifications Brand: ...

$102.68*
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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 for High-Performance Computing

Experience reliable and high-performance storage with the Western Digital 120 GB EIDE Hard Drive. Designed to maximize desktop computer performance, this drive is ideal for gaming, video editing, and file server applications.

Specifications

  • Brand: Western Digital
  • Capacity: 120 GB
  • Interface: Ultra ATA/100 (EIDE)
  • Buffer Size: 8 MB Cache
  • Rotational Speed: 7,200 RPM (nominal)
  • Average Latency: 4.2 milliseconds (nominal)
  • Form Factor: 3.5-inch

Key Features

120 GB Ultra ATA/100 internal hard drive

7200 RPM, 8 MB buffer

Up to 100 MB/s burst transfer rates; data protection enhancments

40-pin EIDE

Fits 3.5-inch bay

Specifications

Capacity
120 GB
Interface
Ultra ATA/100
RPM
7200 RPM
Buffer
8 MB
Connector
40-pin EIDE
Form Factor
3.5-inch bay
Transfer Rate
Up to 100 MB/s burst

Pros & Cons

👍 Pros

  • Offers a 120 GB capacity, suitable for older systems or specific applications that do not require massive storage.
  • Features a 7200 RPM rotational speed combined with an 8 MB buffer for respectable data access times.
  • Supports Ultra ATA/100 interface, providing burst transfer rates up to 100 MB/s for efficient data movement.
  • Includes data protection enhancements to help safeguard stored information, adding a layer of security.
  • Designed to fit standard 3.5-inch drive bays, making it compatible with many desktop computer cases.

👎 Cons

  • The 120 GB capacity is significantly smaller than modern hard drives, limiting its use for extensive data storage.
  • Utilizes the EIDE (PATA) interface, which is a legacy technology and not compatible with newer SATA-only motherboards.
  • The 8 MB buffer is modest compared to contemporary drives that often feature much larger cache sizes for performance.
  • While 7200 RPM is decent, it is slower than the speeds offered by modern SSDs or higher-end HDDs with larger buffers.
  • Data protection enhancements are mentioned, but specific details about the type or extent of protection are not provided.

Frequently Asked Questions

This Western Digital WD1200JBRTL hard drive uses a 40-pin EIDE (Ultra ATA/100) interface, which is a legacy connection type for older computer systems.
The hard drive offers a storage capacity of 120 GB, suitable for basic computing needs or as a replacement drive in older systems.
This drive features a rotational speed of 7200 RPM and comes with an 8 MB buffer, contributing to its data access performance.
This drive is designed to fit a 3.5-inch bay, but its EIDE interface means it will only be compatible with motherboards that support EIDE/PATA connections, which are rare in modern computers.
The Western Digital WD1200JBRTL supports burst transfer rates of up to 100 MB/s, allowing for relatively quick data movement over its Ultra ATA/100 interface.