What does IDE (UDMA-66) represent?

IDE (UDMA-66) is a Parallel ATA transfer mode defining a maximum theoretical burst data rate of 66.7 megabytes per second for legacy PATA storage devices.

How is gigabit per second (SI def.) different from gibibit per second?

Gigabit per second (SI def.) uses a decimal base of 10^9 bits per second, while gibibit per second uses a binary base of 2^30 bits per second, making them distinct units.

Why convert IDE (UDMA-66) to gigabit/second?

Converting IDE (UDMA-66) to gigabit/second allows comparison of legacy PATA device speeds with modern networking and communication throughput.

IDE (UDMA-66) to Gigabit/second (SI def.) Converter

Convert data transfer rates from IDE (UDMA-66), a legacy PATA transfer mode, to gigabit per second using SI units. Easily compare legacy IDE device speeds with modern networking data rates.

IDE (UDMA-66)

Gigabit/second (SI def.)

Please check your input. It must be a valid numeric value.

IDE (UDMA-66) to Gigabit/second (SI def.) Conversion Table

IDE (UDMA-66)	Gigabit/second (SI def.)

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-66) to Gigabit/second (SI def.) Conversion Table
IDE (UDMA-66)	Gigabit/second (SI def.)

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What Is This Tool?

This converter transforms data transfer rates expressed in IDE (UDMA-66), an older Parallel ATA transfer mode defining burst transfer rates for legacy storage devices, into gigabit per second measured using the SI decimal definition. It helps bridge the gap between historical PATA speeds and current gigabit networking standards.

How to Use This Tool?

Enter the data transfer value in IDE (UDMA-66) units
Select the target unit as gigabit/second (SI def.)
Click convert to view the equivalent value in gigabits per second
Use the result to compare legacy device speeds with contemporary data rates

Key Features

Converts IDE (UDMA-66) burst transfer rates to gigabit per second (SI definition)
Uses official conversion rate based on maximum theoretical speeds
Supports performance comparison between legacy storage and modern network speeds
Browser-based and easy-to-use interface

Examples

2 IDE (UDMA-66) equals 1.056 gigabit/second (SI def.)
5 IDE (UDMA-66) equals 2.64 gigabit/second (SI def.)

Common Use Cases

Specifying or verifying maximum burst throughput of older PATA (IDE) hard drives and optical drives
Selecting or configuring drive transfer modes in legacy BIOS or operating systems
Interpreting benchmarks and troubleshooting transfer errors on older IDE systems
Comparing legacy storage transfer rates with networking data throughput in diagnostics and system analysis

Tips & Best Practices

Remember that IDE (UDMA-66) rates represent theoretical maximum burst speeds, not sustained transfer
Consider overhead and encoding differences when comparing bit-based and byte-based transfer units
Clearly distinguish SI gigabit rates from binary-based data transfer rates to avoid confusion
Use this tool alongside other diagnostics for comprehensive legacy system evaluation

Limitations

IDE (UDMA-66) speeds are maximum theoretical bursts and may not reflect ongoing throughput
Gigabit/second (SI def.) indicates bit rates and does not directly convert to byte-based speeds without additional context
Differences between decimal SI gigabit and binary-based units can lead to misunderstanding if not properly noted

Frequently Asked Questions

What does IDE (UDMA-66) represent?: IDE (UDMA-66) is a Parallel ATA transfer mode defining a maximum theoretical burst data rate of 66.7 megabytes per second for legacy PATA storage devices.
How is gigabit per second (SI def.) different from gibibit per second?: Gigabit per second (SI def.) uses a decimal base of 10^9 bits per second, while gibibit per second uses a binary base of 2^30 bits per second, making them distinct units.
Why convert IDE (UDMA-66) to gigabit/second?: Converting IDE (UDMA-66) to gigabit/second allows comparison of legacy PATA device speeds with modern networking and communication throughput.

Key Terminology

IDE (UDMA-66): A Parallel ATA transfer mode defining maximum burst throughput of 66.7 megabytes per second for legacy PATA storage devices.
Gigabit/second (SI def.): Data transfer rate equal to 10^9 bits per second, commonly used to express network link capacity and throughput.
Burst Transfer Rate: The maximum theoretical data transfer capability during short consecutive data bursts rather than sustained rates.

Quick Knowledge Check

What is the maximum theoretical raw data rate of IDE (UDMA-66)?

66.7 megabytes per second

100 megabytes per second

1 gigabyte per second

What does 1 gigabit/second (SI def.) equal in bits per second?

1,073,741,824 bits per second

1,000,000,000 bits per second

1,250,000,000 bits per second

Why might the theoretical speed of IDE (UDMA-66) differ from actual transfer speeds?

Due to hardware limitations and overhead

Because it measures sustained transfer only

Because it uses binary prefixes

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