What Is This Tool?
This converter allows users to translate data transfer rates from IDE (UDMA mode 3), a legacy Parallel ATA transfer mode, to SCSI (Ultra-2), a more advanced parallel SCSI interface standard. It supports comparing storage interface speeds relevant to older systems and enterprise environments.
How to Use This Tool?
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Enter the value in IDE (UDMA mode 3) units you wish to convert
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Select IDE (UDMA mode 3) as the source unit and SCSI (Ultra-2) as the target unit
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Click the convert button to immediately see the equivalent data transfer rate in SCSI (Ultra-2)
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Use the results to compare or document storage performance between the two interfaces
Key Features
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Converts data transfer rates between IDE (UDMA mode 3) and SCSI (Ultra-2)
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Supports legacy storage interface conversions for hardware comparison
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Provides theoretical maximum transfer rate translation based on established conversion rates
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Browser-based and easy to use with no installation required
Examples
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2 IDE (UDMA mode 3) converts to 1.25 SCSI (Ultra-2)
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4 IDE (UDMA mode 3) converts to 2.5 SCSI (Ultra-2)
Common Use Cases
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Comparing or specifying throughput for legacy PATA/IDE and SCSI storage devices
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Assessing compatibility and performance during hardware upgrades or maintenance
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Translating data transfer rates for benchmarking older systems in enterprise or data center environments
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Documenting drive speed settings in BIOS or firmware for legacy systems
Tips & Best Practices
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Use this tool for theoretical rate comparisons rather than precise performance measurement
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Verify device compatibility beyond transfer rates when planning system upgrades
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Consider the condition and configuration of devices when interpreting converted results
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Remember that cable quality and protocol differences affect real-world speeds
Limitations
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Conversion reflects theoretical maximum data rates only, not actual performance
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Does not account for overhead, device condition, cable quality, or protocol efficiency
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Applicable to legacy or specialized IDE and SCSI interfaces and may not relate to modern storage standards
Frequently Asked Questions
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What does IDE (UDMA mode 3) represent?
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IDE (UDMA mode 3) is an Ultra DMA transfer mode used with Parallel ATA interfaces, providing a maximum theoretical transfer rate of about 44.4 MB/s, commonly known as UDMA/44.
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What is SCSI (Ultra-2)?
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SCSI (Ultra-2) is an advanced parallel SCSI standard that uses Low Voltage Differential signaling to support higher data transfer rates and longer cables compared to earlier SCSI versions.
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Can this converter predict real-world transfer speeds?
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No, the converter only reflects theoretical maximum data rates and does not consider real-world factors such as overhead or device condition.
Key Terminology
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IDE (UDMA mode 3)
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A Parallel ATA Ultra DMA transfer mode offering up to about 44.4 MB/s with reduced CPU involvement.
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SCSI (Ultra-2)
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A parallel Small Computer System Interface standard using Low Voltage Differential signaling for improved data transfer rates and cable length.
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Conversion Rate
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The fixed theoretical ratio used to translate data transfer values from IDE (UDMA mode 3) to SCSI (Ultra-2), which is 1 to 0.625.