What does SCSI (Ultra-2) represent?

SCSI (Ultra-2) is a parallel Small Computer System Interface standard using Low Voltage Differential signaling for higher data-transfer performance and longer cable lengths.

What is IDE (PIO mode 3)?

IDE (PIO mode 3) is a CPU-driven programmed I/O transfer mode for Parallel ATA/IDE storage devices with a maximum theoretical throughput of about 11.1 MB/s.

Can I directly interchange devices using this conversion?

No, this conversion indicates relative transfer rate differences and does not imply device interoperability due to differing signaling protocols and bus architectures.

How to Convert from SCSI (Ultra-2) to IDE (PIO mode 3)?

Easily convert data transfer rates from SCSI (Ultra-2) to IDE (PIO mode 3) with this online tool. Understand the conversion process between enterprise-level SCSI standards and legacy IDE modes for accurate comparisons.

SCSI (Ultra-2)

IDE (PIO mode 3)

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

SCSI (Ultra-2) to IDE (PIO mode 3) Conversion Table

SCSI (Ultra-2)	IDE (PIO mode 3)

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.

SCSI (Ultra-2) to IDE (PIO mode 3) Conversion Table
SCSI (Ultra-2)	IDE (PIO mode 3)

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What Is This Tool?

This unit converter translates data transfer values from SCSI (Ultra-2), a high-performance parallel SCSI standard, into IDE (PIO mode 3), a legacy programmed I/O transfer mode for Parallel ATA/IDE devices. It helps users compare or interpret data rates between advanced enterprise storage interfaces and older IDE technologies commonly used in desktops and embedded systems.

How to Use This Tool?

Enter the value in SCSI (Ultra-2) data transfer units you want to convert
Select SCSI (Ultra-2) as the source unit and IDE (PIO mode 3) as the target unit
Click the convert button to get the equivalent value in IDE (PIO mode 3)
Review the converted result and use it for performance or compatibility analysis

Key Features

Converts data transfer rates from SCSI (Ultra-2) to IDE (PIO mode 3)
Provides easy input and immediate conversion output
Browser-based with no installation required
Supports comparison of storage interface performance

Examples

2 SCSI (Ultra-2) equals approximately 14.4144 IDE (PIO mode 3)
0.5 SCSI (Ultra-2) equals approximately 3.6036 IDE (PIO mode 3)

Common Use Cases

Comparing data transfer rates between enterprise-level SCSI and legacy IDE devices
Maintaining or testing legacy hardware systems that use IDE PIO mode 3
Embedded system design involving older IDE storage interfaces
Benchmarking historical storage performance in IT and data center environments

Tips & Best Practices

Ensure correct unit selection before conversion
Use the conversion for relative data rate comparisons only
Consider hardware and signaling differences when interpreting results
Validate results with practical performance tests when possible

Limitations

Conversion reflects relative transfer rates, not direct interoperability
CPU-driven IDE PIO mode 3 is less efficient than SCSI (Ultra-2) with DMA
Theoretical maximums may differ from actual sustained throughput due to system constraints

Frequently Asked Questions

What does SCSI (Ultra-2) represent?: SCSI (Ultra-2) is a parallel Small Computer System Interface standard using Low Voltage Differential signaling for higher data-transfer performance and longer cable lengths.
What is IDE (PIO mode 3)?: IDE (PIO mode 3) is a CPU-driven programmed I/O transfer mode for Parallel ATA/IDE storage devices with a maximum theoretical throughput of about 11.1 MB/s.
Can I directly interchange devices using this conversion?: No, this conversion indicates relative transfer rate differences and does not imply device interoperability due to differing signaling protocols and bus architectures.

Key Terminology

SCSI (Ultra-2): A parallel Small Computer System Interface standard that uses Low Voltage Differential signaling for higher data transfer performance and longer cable lengths.
IDE (PIO mode 3): A programmed I/O transfer mode for Parallel ATA/IDE devices driven by the CPU, with a theoretical maximum throughput of about 11.1 MB/s.
Data Transfer Rate: The speed at which data is moved from one device or location to another, measured in units per second.

Quick Knowledge Check

What type of signaling does SCSI (Ultra-2) use?

Single-ended signaling

Low Voltage Differential signaling

Optical signaling

What is the maximum theoretical throughput of IDE (PIO mode 3)?

7 MB/s

About 11.1 MB/s

20 MB/s

What is a key limitation of converting SCSI (Ultra-2) data rates to IDE (PIO mode 3)?

It provides exact compatibility between devices

It reflects relative transfer rates, not direct interoperability

It increases actual data rates during conversion

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