What is IDE (UDMA mode 1)?

IDE (UDMA mode 1) is an Ultra DMA transfer mode of the Parallel ATA interface that provides a theoretical maximum raw transfer rate of about 25 MB/s, used mainly in older PATA devices.

Is H11 a standard unit for data transfer?

No, H11 is not a recognized or standard unit; data transfer rates are usually measured in bits per second or bytes per second with common multiples like MB/s or Mbps.

Why convert from IDE (UDMA mode 1) to H11?

Users convert to H11 to help compare and diagnose legacy IDE transfer rates alongside other measurement benchmarks, especially in vintage computing.

How to Convert from IDE (UDMA mode 1) to H11

Learn how to convert data transfer rates from IDE (UDMA mode 1), a legacy PATA interface mode, to the non-standard H11 unit for comparative purposes in vintage computing and benchmarking.

IDE (UDMA mode 1)

H11

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IDE (UDMA mode 1) to H11 Conversion Table

IDE (UDMA mode 1)	H11

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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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IDE (UDMA mode 1) to H11 Conversion Table
IDE (UDMA mode 1)	H11

Explore More Data Transfer Units Converter

What Is This Tool?

This converter allows you to translate data transfer rates measured in IDE (UDMA mode 1), a legacy transfer mode for Parallel ATA devices, into the H11 unit. Although H11 is not a standard measurement, this tool helps users compare and analyze older hardware transfer rates alongside other units.

How to Use This Tool?

Enter the value in IDE (UDMA mode 1) transfer rate you want to convert
Select IDE (UDMA mode 1) as the source unit and H11 as the target unit
Click convert to see the equivalent amount in H11 units

Key Features

Converts transfer rates from IDE (UDMA mode 1) to H11 with a fixed conversion rate
Supports legacy hardware performance evaluation and diagnostics
Browser-based and straightforward to use
Facilitates comparison of older PATA device speeds with other units

Examples

1 IDE (UDMA mode 1) equals about 130.21 H11
2 IDE (UDMA mode 1) converts to roughly 260.42 H11

Common Use Cases

Diagnosing BIOS or drive transfer settings on vintage PCs with PATA drives
Benchmarking and reporting speeds of older IDE hard disks
Comparing legacy IDE transfer rates to modern data-transfer metrics
Troubleshooting cable and controller compatibility in vintage computing

Tips & Best Practices

Use this tool primarily for legacy hardware diagnostics and benchmarking
Be cautious interpreting results due to H11’s non-standard status
Cross-reference converted values with actual device specifications when possible
Avoid relying on this conversion for formal or scientific data transfer measurements

Limitations

H11 is not a recognized or standard unit for data transfer
Conversion results are theoretical and mainly for legacy compatibility
Interpretation of H11-based values requires caution
Conversion may not reflect widely accepted data transfer standards

Frequently Asked Questions

What is IDE (UDMA mode 1)?: IDE (UDMA mode 1) is an Ultra DMA transfer mode of the Parallel ATA interface that provides a theoretical maximum raw transfer rate of about 25 MB/s, used mainly in older PATA devices.
Is H11 a standard unit for data transfer?: No, H11 is not a recognized or standard unit; data transfer rates are usually measured in bits per second or bytes per second with common multiples like MB/s or Mbps.
Why convert from IDE (UDMA mode 1) to H11?: Users convert to H11 to help compare and diagnose legacy IDE transfer rates alongside other measurement benchmarks, especially in vintage computing.

Key Terminology

IDE (UDMA mode 1): An Ultra DMA transfer mode of the Parallel ATA interface, with a theoretical max transfer of about 25 MB/s, used for older PATA drives.
H11: A non-standard unit not recognized in data transfer; used here mainly for theoretical or legacy compatibility conversions.
Parallel ATA (PATA): A legacy interface standard for connecting storage devices such as hard drives and optical drives, preceding SATA.

Quick Knowledge Check

What type of device typically uses IDE (UDMA mode 1)?

Modern SSDs

Older PATA devices

Network routers

Is H11 a widely accepted standard for measuring data transfer?

Yes, it is a universal unit

No, it is not standard

Only for storage sizes

What is a common use of converting IDE (UDMA mode 1) to H11?

For legacy diagnostics and benchmarking

For measuring internet speed

For estimating battery life

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