Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Seagate ST351A/X 42.8MB 3000RPM IDE/ATA 3.5-Inch Hard Drive
- Capacity: 42.8MB
- Form Factor: 3.5-inch
- Interface: IDE/ATA (PATA)
- Rotational Speed: 3000RPM
- Drive Type: HDD (Hard Disk Drive)
- Legacy Technology: Suitable for older systems
- Data Transfer Mode: PIO/DMA
ST351A/X 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 ↓- Product Type
- Hard Disk Drive (HDD)
- Brand
- Seagate
- Part Number
- ST351A/X
- Capacity
- 42.8MB
- Form Factor
- 3.5-inch
- Interface
- IDE/ATA (PATA)
Product details
This Seagate Hard Drive is a 3.5-inch IDE/ATA drive with a capacity of 42.8MB and a rotational speed of 3000RPM. It represents older technology for legacy systems.
Technical Information
| Product Type | Hard Disk Drive (HDD) |
| Brand | Seagate |
| Part Number | ST351A/X |
| Capacity | 42.8MB |
| Form Factor | 3.5-inch |
Additional Specifications
| Interface | IDE/ATA (PATA) |
| Rotational Speed | 3000RPM |
| Cache | N/A (typical for this era) |
| Data Transfer Mode | PIO/DMA |
Description
The Seagate ST351A/X is a legacy 3.5-inch hard disk drive with a very small storage capacity of 42.8 megabytes. It utilizes the older IDE (Integrated Drive Electronics) or ATA (Advanced Technology Attachment) interface, also known as PATA (Parallel ATA), which was standard in personal computers and servers from the late 1980s through the early 2000s. The drive spins at 3000 RPM, a relatively slow speed by modern standards, reflecting its age and intended use. This drive is primarily intended for use in older computer systems or specialized equipment that still relies on the IDE interface. Its extremely limited capacity means it is not suitable for modern operating systems or large data storage needs. It might be found in vintage computers, industrial control systems, or embedded devices that have not been upgraded. Given its specifications, the ST351A/X represents a piece of computing history. Its data transfer capabilities would be limited by the PIO (Programmed Input/Output) or early DMA (Direct Memory Access) modes supported by the IDE interface, significantly slower than modern SATA or NVMe interfaces. Finding compatible hardware and operating systems for this drive can be challenging.
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 ST351A/X.


