Name: 20MB MFM Half-Height 5 1/4-Inch Hard Drive - Legacy Storage Solution
Brand: Seagate
Price: 81.95 USD
Availability: InStock

Seagate ST225 20MB MFM Half-Height 5 1/4-Inch Hard Drive - Legacy Storage Solution

The Seagate ST225 is a classic 20-¯MB MFM (Modified Frequency Modulation) half-'height hard drive designed for 5-¯Â¼-'inch drive bays. Originally introduced in the early 1990s, this reliable storage solution is prized by vintage computer enthusiasts,... Read More

price

$81.95

In Stock: 13
Manufacturer: Seagate
Model or Part: ST225
Condition: Refurbished
Weight: 1.00lb

Qty

Add to Cart

Buy Now

Add to Wish List

Shipping Information

United States Shipping

Orders over $200 qualify for Free Super-Saver Shipping! We ship at our discretion via the most cost-effective method using FedEx, UPS, or USPS.

To ensure your order is processed efficiently, all shipping charges must be pre-paid at checkout. We are unable to bill directly to third-party shipper accounts or use customer-provided labels for domestic shipments.

International Shipping

International orders begin processing as soon as payment is confirmed.

Pre-paid Shipping: For your convenience, you can select and pay for international shipping directly at checkout.
Carrier Accounts: Alternatively, we can bill transport costs directly to your FedEx account number. (Note: We cannot bill to DHL, TNT, or UPS accounts).
Customer Labels: We are also happy to ship internationally using pre-paid labels provided by you for any carrier.

Expedited and Rush Shipping

Need it faster? HardwareJet.com offers 1 or 2-day expedited shipping options during checkout for eligible items.

To get your order to the front of the line, expedited orders include a small rush fee in addition to the carrier's shipping charges. If an item is not available for expedited shipping, these options will not appear in your cart.

Product Information

Item Condition

New - Sealed or Open Box Condition
Excellent - Almost-New, Missing Original Packaging
Refurbished - Seller Refurbished, Good Condition, Previously Used Item

To bring you an even wider selection, some of our items are shipped directly from our trusted partners. Delivery times may vary for these items.

Description

Overview
The Seagate ST225 is a classic 20-¯MB MFM (Modified Frequency Modulation) half-'height hard drive designed for 5-¯Â¼-'inch drive bays. Originally introduced in the early 1990s, this reliable storage solution is prized by vintage computer enthusiasts, restoration projects, and industrial applications that require proven, non-'volatile data retention on legacy systems. Its compact half-'height form factor makes it an ideal drop-'in replacement for older workstations, servers, and embedded platforms that still rely on MFM technology.

Key Features

20-¯MB Capacity -" Sufficient for legacy operating systems, diagnostic tools, and archival of essential files.
MFM Interface -" Compatible with standard MFM controllers used in early IBM PC/AT, DEC, and Sun workstations.
Half-'Height Design -" Fits 5-¯Â¼-'inch drive bays with a reduced vertical profile, saving valuable rack space.
Robust Construction -" Rugged aluminum enclosure and sealed bearings provide long-'term reliability in harsh environments.
Low Power Consumption -" Operates at 5-¯V and 12-¯V rails, ideal for legacy power supplies.

Technical Specifications

Model/Part Number: ST225
Manufacturer: Seagate
Form Factor: Half-'Height, 5-¯Â¼-'inch
Storage Capacity: 20-¯MB
Recording Method: MFM (Modified Frequency Modulation)
Interface: 34-'pin MFM connector
Spindle Speed: 3-¯600-¯RPM
Average Seek Time: 18-¯ms
Data Transfer Rate: up to 250-¯KB/s (raw)
Operating Voltage: 5-¯V / 12-¯V
Power Consumption (Idle/Active): 4-¯W / 6-¯W
Temperature Range: 0-¯°C to 55-¯°C (32-¯°F to 131-¯°F)

Typical Applications

Restoration of vintage IBM PC/AT, DEC VAX, and early Sun workstations.
Embedded control systems that still employ MFM interfaces.
Data recovery projects for legacy magnetic media.
Educational labs demonstrating early hard-'disk technology.
Industrial equipment where long-'term, low-'maintenance storage is required.

Whether you are rebuilding a classic computer, need a dependable storage device for a legacy system, or simply want to preserve a piece of computing history, the Seagate ST225 20-¯MB MFM half-'height hard drive delivers the performance, durability, and compatibility that enthusiasts and professionals alike trust.