COMPAQ 4.3GB 10K RPM 68-Pin Ultra SCSI 3.5" HDD – 339512-001 339514-001 339506-B21 DDRS-34560 21L9433

This listing is for a Compaq 4.3GB 10K RPM Ultra Wide SCSI 3.5" Internal Hard Drive, pulled from a working system and ideal for restoring vintage Compaq servers, workstations, or any legacy SCSI‑based setup.This drive uses a 68‑pin Ultra SCSI‑3 interface and includes multiple Compaq part numbers for compatibility across a wide range of late‑1990s ProLiant and Professional Workstation systems.

The unit is clean, tested for power‑on and spin‑up, and shows normal signs of use for its age. Perfect for collectors, retro computing enthusiasts, or anyone maintaining legacy hardware.

Compatible Part Numbers: 339512‑001 / 339514‑001 / 339506‑B21 / DDRS‑34560 / 21L9433

This listing is for a Compaq 4.3GB 10K RPM Ultra Wide SCSI 3.5" Internal Hard Drive, pulled from a working system and ideal for restoring vintage Compaq servers, workstations, or any legacy SCSI‑based setup.This drive uses a 68‑pin Ultra SCSI‑3 interface and includes multiple Compaq part numbers for compatibility across a wide range of late‑1990s ProLiant and Professional Workstation systems.

The unit is clean, tested for power‑on and spin‑up, and shows normal signs of use for its age. Perfect for collectors, retro computing enthusiasts, or anyone maintaining legacy hardware.

Compatible Part Numbers: 339512‑001 / 339514‑001 / 339506‑B21 / DDRS‑34560 / 21L9433

📊 Technical Specification SheetGeneral

• Brand: Compaq

• Model: DDRS‑34560 (IBM/Hitachi mechanism used by Compaq)

• Capacity: 4.3GB (4300MB)

• Form Factor: 3.5" internal

• Drive Type: Hard Disk Drive Speed: 10,000 RPM

• Interface: Ultra Wide SCSI‑3 (68‑pin)

• Data Transfer Rate: Up to 40 MB/s (UW SCSI)

• Seek Time: ~7.5 ms (typical for this Requirements:

  • +12V — 650mA

  • +5V — Standard 3.5" SCSI drive

  • Weight: Approx. 1.5 lbs (varies slightly by batch)

  • Mounting: Standard 3.5" screw Part Mechanism Model: DDRS‑34560

  • FRU / OEM Number: 21L9433

  • Manufactured: Thailand, Aug‑1998 (varies by used in:

    • Compaq ProLiant servers (late 1990s)

    • Compaq Professional Workstations

    • Any system supporting 68‑pin Ultra Wide SCSI‑3

    
    

    Model: DORS‑34330Compaq Option Kit P/N: 138963‑001Compaq Spare P/N: 139351‑001Capacity: 4.3GBManufactured: August 1998Country of Origin: Thailand

    1. General Information

    • Brand: Compaq

    • Drive Mechanism OEM: IBM / Hitachi (DORS series)

    • Model Number: DORS‑34330

    • Compaq Option Kit: 138963‑001

    • Compaq Spare Number: 139351‑001

    • Serial Number (example from label): 2165001MACWJ29

    • Form Factor: 3.5" internal hard disk drive

    • Interface: Wide Ultra SCSI‑3 (68‑pin)

    • Intended Use: Servers, workstations, enterprise storage, legacy SCSI systems

    2. Capacity & Performance

    • Formatted Capacity: 4.3GB (4300MB)

    • Rotational Speed: 7,200 RPM (DORS series spec)

    • Average Seek Time: ~8.5 ms (typical for DORS‑34330)

    • Buffer / Cache: 512KB (typical for this model)

    • SCSI Standard: Ultra SCSI‑3 (Wide, 16‑bit)

    • Max Data Transfer Rate: Up to 40 MB/s

    • Sector Size: 512 bytes

    3. Electrical Specifications

    • Power Requirements:

      • +12V: 650 mA

      • +5V: 520 mA

    • Power Usage:

      • Spin‑up: ~18W

      • Read/Write: ~10W

      • Idle: ~8W

    4. Physical Specifications

    • Form Factor: 3.5"

    • Interface Connector: 68‑pin Wide ~1.0 in (25 mm)

    • Width: 4.0 in (101.6 mm)

    • Depth: 5.75 in (146 mm)

  • Weight: ~1.5 lbs (0.68 kg)

  • Mounting: Standard 3.5" screw pattern

  5. Environmental Specifications

  • Operating Temperature: 5°C to 55°C

  • Non‑Operating Temperature: –40°C to 70°C

  • Operating Shock: 10 G (2 ms)

  • Non‑Operating Shock: 75 G (11 ms)

  • Acoustics: ~35 dBA (idle)

  6. Compliance & Certifications

  • CE Marked

  • Compaq OEM SCSI hardware

  7. Additional Label Information (from drive)

  • Yellow Label Barcode Label:

    • 40895 — Compaq Computer Corp.

  • Warranty Notice:

    • Warranty void if any label or screw is removed or broken

  8. Typical System Compatibility

  This drive was commonly used in:

  • Compaq ProLiant servers (late 1990s)

  • Compaq Professional Workstations

  • Legacy SCSI RAID arrays

  • Any system supporting 68‑pin Ultra Wide SCSI‑3