
Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
ST38421A7 - Seagate 8GB 5400RPM ATA-66 3.5-inch Hard Drive
- 8GB storage capacity
- 3.5-inch form factor
- 5400 RPM spindle speed
- ATA-66 interface
- Legacy hard drive
- Suitable for older systems
- Basic storage solution
- IDE compatible
ST38421A7 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Capacity
- 8GB
- Form Factor
- 3.5-inch
- Rotational Speed
- 5400 RPM
- Interface
- ATA-66 (IDE/PATA)
- Model
- ST38421A7
- Manufacturer
- Seagate
Product details
The Seagate ST38421A7 is a 3.5-inch internal hard drive with an 8GB capacity. It operates at 5400RPM and uses an ATA-66 interface, offering basic storage for older computer systems or specific embedded applications. This drive is a legacy component with a relatively small storage footprint.
Technical Information
| Capacity | 8GB |
| Form Factor | 3.5-inch |
| Rotational Speed | 5400 RPM |
Additional Specifications
| Interface | ATA-66 (IDE/PATA) |
| Model | ST38421A7 |
| Manufacturer | Seagate |
Description
The Seagate ST38421A7 is an internal hard drive featuring an 8GB storage capacity and a 3.5-inch form factor. It spins at 5400 RPM, providing a balance between access speed and power consumption typical for drives of its generation. The drive utilizes the ATA-66 interface, which is an enhanced version of the Parallel ATA (PATA) or IDE standard, offering improved data transfer rates over earlier ATA specifications. This hard drive is considered a legacy component, designed for use in older desktop computers, workstations, or embedded systems that utilize the PATA interface. The 8GB capacity is very limited by today's standards, making it suitable only for basic operating systems, simple applications, or as a storage medium in specialized hardware where large storage is not a requirement. The ATA-66 interface ensures compatibility with motherboards that support this standard, allowing for data transfer rates up to 66MB/s. While significantly slower than modern SATA interfaces, it was a capable standard during its time. The ST38421A7 serves as a functional storage device for systems that are not equipped with SATA ports or require the specific characteristics of older ATA drives.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for ST38421A7.


