Up for sale is a rare piece of computer history: a vintage Microscience International HH-612 10MB 5.25" MFM Winchester hard drive. Introduced in 1982, the HH-612 is famous for being the world's first half-height 5.25" hard drive. This unit comes mounted in its original full-height adapter frame with a full-height front bezel.

Condition Details:

Mechanics: Rotational spin check confirmed—the spindle/platters spin freely with no stiction (heads are not seized).

Cosmetics: Clean board, intact factory defect label, and original front bezel.

Testing: UNTESTED. Sold strictly AS-IS / For Restoration or Collector Display due to age and lack of vintage controller hardware.

Specifications:

Manufacturer: Microscience International Corp

Model: HH-612

Capacity: 10MB Formatted

Interface: ST-506 / ST-412 MFM

Form Factor: 5.25" Half-Height core inside Full-Height chassis frame