PC 5.25 Drive


At A Glance

The Apple PC 5.25 Drive was aimed at providing easy data exchange between Apple computers and MS-DOS formatted 5.25″ 360Kb disks. Read the original specifications of the Apple PC 5.25 Drive at the Apple support site.

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Original Specifications

  • Recording Media: 5.25 inch removable floppy disks
  • Capacity:
    • Formatted capacity: 360 kilobytes per disk
    • Recording surfaces: 2
    • Tracks per surface: 40
    • Tracks per inch (TPI): 48
  • Characteristics:
    • Average Seek Time: 19 milliseconds
    • Transfer Rate: 250 kilobytes per second
    • Rotational Speed: 300 RPM
    • Average Startup Time: 500 milliseconds
  • Power Consumption:
    • +12 (+/- 1.2) volts DC (maximum ripple 100 millivolts peak-to-peak)
    • Read/Write: 300 milliamps
    • Maximum stepping: 350 milliamps
    • Maximum Motor Start: 900 milliamps +5 volts DC



  • Interface:
    • Connects to Macintosh SE and Macintosh II via an internal drive card
  • Environmental requirements:
    • Operating temperature: 50 to 104 degrees F (10 to 40 C)
    • Relative Humidity: 20% to 80% condensing
    • Maximum altitude: 10,000 feet
  • Size and weight:
    • Height: 2.9 in (72 mm)
    • Width: 6.37 in (162 mm)
    • Depth: 8.3 in (207 mm)
    • Weight: 4.78 lbs (2.17 kg)



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