Seagate Model ST-225 Hard Disk Vintage 20 GB ST-412 / ST-506 MFM For Sale
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Seagate Model ST-225 Hard Disk Vintage 20 GB ST-412 / ST-506 MFM
Price: US $75.00
Seagate ST-225 20MB 5.25" Half-Height MFM Hard Drive
Classic Seagate ST-225 vintage hard disk drive from the mid-1980s
Formatted capacity: approximately 20–21.4 MB (unformatted ~25.6 MB)
Form factor: 5.25-inch half-height
Interface: ST-412 / ST-506 MFM
Spindle speed: 3600 RPM
Actuator type: Stepper motor
Average access time: 65 ms
Configuration: 615 cylinders, 4 heads, 17 sectors per track
IBM AT drive type: 2
Power requirements: +5V and +12V
One of the most popular and reliable 20 MB hard drives of the era — widely used in IBM PC/AT and compatible systems
Ideal for retro computing, vintage PC restoration, or collection
Condition notes:
Powers on and spins up, no other tests preformed.
Cosmetic condition:clean with no obvious damage
Includes original label / no accessories
Perfect for collectors and enthusiasts of 1980s PC hardware. Please see pictures for condition.
