What Is This Tool?
This converter facilitates the translation of data transfer rates between IDE (UDMA mode 4) and SCSI (Fast Ultra Wide), two legacy parallel data transfer protocols commonly used in older PCs, servers, and storage systems.
How to Use This Tool?
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Enter the data transfer value in IDE (UDMA mode 4) units
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Select IDE (UDMA mode 4) as the source unit and SCSI (Fast Ultra Wide) as the target unit
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Click the convert button to view the equivalent transfer rate in SCSI (Fast Ultra Wide)
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Use the results to compare performance or assist in configuring legacy storage hardware
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Repeat conversions for different values as needed for benchmarking or troubleshooting
Key Features
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Converts data transfer speeds from IDE (UDMA mode 4) to SCSI (Fast Ultra Wide) using an established conversion rate
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Supports benchmarking and troubleshooting of legacy storage hardware and data recovery processes
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Browser-based tool enabling quick comparisons of transfer performance across legacy IDE and SCSI interfaces
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Includes detailed unit definitions and use cases for both IDE and SCSI standards
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Helps translate throughput measurements for older PCs, servers, and enterprise storage solutions
Examples
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1 IDE (UDMA mode 4) converts to 1.65 SCSI (Fast Ultra Wide)
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2 IDE (UDMA mode 4) converts to 3.3 SCSI (Fast Ultra Wide)
Common Use Cases
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Connecting PATA/IDE hard drives or optical drives in legacy PCs supporting ATA-66
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Configuring and troubleshooting DMA modes in older BIOS or firmware environments
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Benchmarking older storage devices and recovering data from legacy IDE drives
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Linking internal drives or RAID controllers in legacy servers and workstations using parallel SCSI
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Performing high-throughput backups to tape libraries via legacy SCSI interfaces
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Managing storage arrays and disk enclosures in established enterprise systems using parallel SCSI cabling
Tips & Best Practices
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Always confirm hardware compatibility before relying on conversion results for configuration
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Use this tool mainly for theoretical throughput comparisons rather than exact real-world speeds
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Consider cable and electrical requirements as they differ between IDE and SCSI standards
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Leverage conversions to assist in legacy system maintenance, archival storage management, and data recovery
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Combine this tool with other diagnostic methods when troubleshooting older computer systems
Limitations
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The conversion reflects theoretical maximum throughput and omits protocol overhead and device condition
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Both IDE (UDMA mode 4) and SCSI (Fast Ultra Wide) are outdated standards not commonly supported on modern hardware
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Physical interface and cabling requirements significantly differ, so direct compatibility is not assured
Frequently Asked Questions
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What is the conversion rate from IDE (UDMA mode 4) to SCSI (Fast Ultra Wide)?
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The conversion rate is 1 IDE (UDMA mode 4) equals 1.65 SCSI (Fast Ultra Wide).
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Can this conversion be used for modern computers?
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No. Both IDE (UDMA mode 4) and SCSI (Fast Ultra Wide) are legacy standards, so the conversion applies only to older hardware configurations.
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Does the conversion guarantee physical compatibility between devices?
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No. Despite the numerical throughput conversion, electrical and cable differences mean devices may not be physically compatible.
Key Terminology
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IDE (UDMA mode 4)
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Also known as Ultra DMA/66 (ATA-4), it is a Parallel ATA transfer mode using an 80-conductor IDE cable to move data at around 66.7 megabytes per second.
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SCSI (Fast Ultra Wide)
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A legacy parallel Small Computer System Interface mode with a wider 16-bit data bus and faster signalling designed for higher throughput than earlier narrow SCSI variants.
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Data Transfer
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The process of moving data between devices or within systems, measured in capacity units relative to time.