What does IDE (UDMA-66) represent?

IDE (UDMA-66), also known as Ultra DMA Mode 4 or ATA-66, is a Parallel ATA transfer mode defining a maximum theoretical raw data rate of 66.7 megabytes per second for legacy PATA devices.

How is a kilobyte per second (SI definition) defined?

A kilobyte per second (SI definition) is a data transfer rate equal to 1000 bytes per second, using decimal prefixes rather than binary.

Why convert IDE (UDMA-66) speeds to kilobyte per second (SI def.)?

Converting allows expressing legacy transfer rates in standard metric units widely used for reporting, benchmarking, and comparison in modern contexts.

How to Convert from IDE (UDMA-66) to Kilobyte/second (SI def.)

Learn to convert data transfer rates from IDE (UDMA-66) to kilobyte per second using SI definitions accurately and understand their common applications.

IDE (UDMA-66)

Kilobyte/second (SI def.)

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

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

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Start Value

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

End Value

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Interval

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

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What Is This Tool?

This converter allows you to change data transfer speeds expressed in IDE (UDMA-66), a legacy Parallel ATA transfer mode, into kilobyte per second units using the SI decimal system. It helps to interpret and compare the burst transfer rates of older PATA storage devices in modern standard units.

How to Use This Tool?

Enter the value in IDE (UDMA-66) units representing the data transfer rate.
Select 'IDE (UDMA-66)' as the input unit and 'kilobyte/second (SI def.)' as the output unit.
Click convert to view the equivalent transfer speed in kilobytes per second using SI decimal prefixes.

Key Features

Converts IDE (UDMA-66) transfer rates to kilobyte per second (SI definition).
Supports data transfer measurements relevant to legacy PATA devices.
Provides straightforward multiplication to express speed in standard metric units.

Examples

2 IDE (UDMA-66) equals 132000 kilobyte/second (SI def.) by multiplying 2 × 66000.
0.5 IDE (UDMA-66) converts to 33000 kilobyte/second (SI def.) calculated as 0.5 × 66000.

Common Use Cases

Specifying or checking maximum burst throughput of older PATA hard drives and optical drives.
Configuring drive transfer modes in BIOS for legacy IDE hardware compatibility and performance.
Interpreting benchmark results and diagnosing transfer problems on older IDE systems.
Reporting file download or upload speeds with SI decimal units in web applications.
Describing throughput for embedded systems or serial links transmitting bytes per second.

Tips & Best Practices

Ensure you select the correct unit conversion to avoid confusion between SI and binary prefixes.
Use this tool to better understand legacy device capabilities within modern metric measurement standards.
Consider hardware and cable conditions as actual speeds may differ from theoretical rates.
Apply this conversion when reporting transfer speeds in environments that use decimal-based units.

Limitations

The IDE (UDMA-66) data rate reflects a theoretical maximum and not the sustained actual transfer speed.
Kilobyte/second (SI def.) uses decimal prefixes and differs from binary units like kibibyte/second (KiB/s).
Real-world transfers can be affected by device health, cable quality, and system setup, impacting results.
This conversion assumes ideal operating conditions which may not always be practical.

Frequently Asked Questions

What does IDE (UDMA-66) represent?: IDE (UDMA-66), also known as Ultra DMA Mode 4 or ATA-66, is a Parallel ATA transfer mode defining a maximum theoretical raw data rate of 66.7 megabytes per second for legacy PATA devices.
How is a kilobyte per second (SI definition) defined?: A kilobyte per second (SI definition) is a data transfer rate equal to 1000 bytes per second, using decimal prefixes rather than binary.
Why convert IDE (UDMA-66) speeds to kilobyte per second (SI def.)?: Converting allows expressing legacy transfer rates in standard metric units widely used for reporting, benchmarking, and comparison in modern contexts.

Key Terminology

IDE (UDMA-66): A legacy Parallel ATA transfer mode with a maximum theoretical rate of 66.7 MB/s used for certain older storage devices.
Kilobyte/second (SI def.): A unit of data transfer rate equal to 1000 bytes per second using decimal prefixes.
PATA cable: An 80-conductor cable required for IDE (UDMA-66) transfer mode to achieve its maximum data rate.

Quick Knowledge Check

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

33.3 megabytes per second

66.7 megabytes per second

100 megabytes per second

How many bytes per second does one kilobyte per second (SI def.) represent?

1024 bytes per second

1000 bytes per second

100 bytes per second

What type of devices commonly use the IDE (UDMA-66) transfer mode?

Modern NVMe SSDs

Legacy PATA hard drives and optical drives

Wireless routers

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