What does IDE (UDMA mode 2) represent?

It is an Ultra DMA transfer mode for PATA interfaces, also known as ATA/33, providing a theoretical transfer rate around 33.3 megabytes per second.

How is gigabyte per second (GB/s) defined here?

Gigabyte per second denotes transferring one gigabyte of data each second; note that gigabyte can be based on decimal (10^9 bytes) or binary (2^30 bytes) conventions.

Why convert IDE (UDMA mode 2) rates to GB/s?

To compare legacy data transfer rates with modern storage and bus bandwidth metrics expressed in gigabytes per second.

How to Convert IDE (UDMA mode 2) to Gigabyte/second [GB/s]

Convert data transfer rates from IDE (UDMA mode 2), a legacy PATA interface mode, to modern gigabyte/second (GB/s) units accurately and understand the context of each unit.

IDE (UDMA mode 2)

Gigabyte/second [GB/s]

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IDE (UDMA mode 2) to Gigabyte/second [GB/s] Conversion Table

IDE (UDMA mode 2)	Gigabyte/second [GB/s]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

IDE (UDMA mode 2) to Gigabyte/second [GB/s] Conversion Table
IDE (UDMA mode 2)	Gigabyte/second [GB/s]

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What Is This Tool?

This tool enables you to convert data transfer rates from IDE (UDMA mode 2), an older PATA interface standard, into gigabytes per second (GB/s), a modern unit of data transfer rate commonly used for storage and memory speed.

How to Use This Tool?

Enter the value measured in IDE (UDMA mode 2) units.
Select IDE (UDMA mode 2) as the source unit and gigabyte/second [GB/s] as the target unit.
Click convert to obtain the equivalent data transfer rate in GB/s.
Use the results to analyze, compare, or document performance metrics accurately.

Key Features

Converts IDE (UDMA mode 2) data transfer rates to gigabyte/second (GB/s).
Supports comparison of legacy device speeds with current storage and bus bandwidth metrics.
Includes clear conversion formula based on standardized transfer rates.
Browser-based, user-friendly interface for easy unit conversion.
Useful for hardware professionals, system analysts, and enthusiasts.

Examples

1 IDE (UDMA mode 2) equals approximately 0.0307 GB/s.
33 IDE (UDMA mode 2) corresponds to about 1.013 GB/s.

Common Use Cases

Configuring legacy PC BIOS or drive-controller settings for ATA/33 transfer modes.
Interpreting and comparing old disk throughput or benchmark reports.
Troubleshooting driver or firmware compatibility for PATA devices.
Analyzing historical device performance alongside modern data rates.

Tips & Best Practices

Confirm which gigabyte definition (decimal GB or binary GiB) applies when comparing results.
Consider the theoretical nature of IDE (UDMA mode 2) transfer rates versus actual throughput.
Use this conversion to translate legacy speeds into contemporary performance contexts.
Check device specifications to ensure correct mode identification before converting.

Limitations

IDE (UDMA mode 2) rates represent maximum theoretical transfer speeds that might not reflect real-world performance.
Gigabyte/second values can vary depending on whether decimal or binary gigabyte units are assumed.
System overhead and device conditions can affect actual data transfer rates.

Frequently Asked Questions

What does IDE (UDMA mode 2) represent?: It is an Ultra DMA transfer mode for PATA interfaces, also known as ATA/33, providing a theoretical transfer rate around 33.3 megabytes per second.
How is gigabyte per second (GB/s) defined here?: Gigabyte per second denotes transferring one gigabyte of data each second; note that gigabyte can be based on decimal (10^9 bytes) or binary (2^30 bytes) conventions.
Why convert IDE (UDMA mode 2) rates to GB/s?: To compare legacy data transfer rates with modern storage and bus bandwidth metrics expressed in gigabytes per second.

Key Terminology

IDE (UDMA mode 2): An Ultra DMA transfer mode for PATA interfaces, providing a theoretical max transfer rate of about 33.3 megabytes per second.
Gigabyte per second (GB/s): A unit denoting the transfer of one gigabyte of data per second, with gigabyte defined in decimal or binary terms.
ATA/33: Another name for IDE (UDMA mode 2), indicating a PATA transfer mode with approximately 33 MB/s throughput.

Quick Knowledge Check

What is the approximate equivalent of 1 IDE (UDMA mode 2) in GB/s?

0.1 GB/s

0.0307 GB/s

1 GB/s

IDE (UDMA mode 2) is also known by which other name?

ATA/66

ATA/33

ATA/100

What must be clarified when comparing gigabyte per second values?

Whether the device is SSD or HDD

Which gigabyte definition is used: decimal or binary

The file system type

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