seagate 21364-020 20MB MFM 5.25-Inch Hard Drive

SKU 21364-020

Brand seagate

Capacity: 20 MB
Interface: MFM
Rotational Speed: 3600 RPM
Form Factor: 5.25-Inch
Manufacturer: Seagate
Model: 21364-020

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Key specifications

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Capacity: 20 MB
Interface: MFM
Rotational Speed: 3600 RPM
Form Factor: 5.25-Inch

Product details

The Seagate 21364-020 is a 5.25-inch MFM hard drive with a capacity of 20MB. It operates at a rotational speed of 3600RPM and uses the MFM interface, typical for early personal computer systems.

Technical Information

Capacity	20 MB
Interface	MFM

Additional Specifications

Rotational Speed	3600 RPM
Form Factor	5.25-Inch

Description

The Seagate 21364-020 is a vintage hard disk drive from the era when MFM (Modified Frequency Modulation) was the standard interface for storage. With a capacity of 20MB, it was a significant upgrade over floppy disks for personal computer users in the early to mid-1980s, allowing for the storage of operating systems and a modest collection of software and data. This drive operates at a spindle speed of 3600 RPM, which was common for drives of its time, providing a reasonable balance between performance and the mechanical limitations of the era. The MFM interface required a dedicated controller card and specific cabling, making installation and configuration more complex than modern interfaces. The 5.25-inch form factor meant it physically fit into the same drive bays used by floppy disk drives, a common sight in computers like the IBM PC XT and early Compaq models. Drives like the Seagate 21364-020 were instrumental in the adoption of personal computers for more practical business and productivity tasks by offering persistent and relatively fast storage.

Condition: Refurbished