Seagate ST3630A 3.5 Inch IDE Hard Drive

The Seagate ST3630A is a 3.5-inch hard disk drive from the Medalist series, offering 630 MB of formatted storage capacity. Designed for legacy computer systems, this drive features an IDE/ATA interface and 5400 RPM spindle speed, providing reliable storage for industrial PCs, embedded systems, and vintage computing applications.

Technical Specifications

The drive features a standard 3.5-inch form factor with 40-pin IDE connector and 4-pin power connector. It includes 128 KB of buffer memory for optimized data throughput. The drive supports PIO modes up to Mode 4 and multi-word DMA modes, ensuring compatibility with a wide range of IDE controllers.

• Capacity: 630 MB (formatted)

• Interface: ATA/IDE (40-pin)

• Spindle Speed: 5400 RPM

• Buffer Size: 128 KB

• Average Seek Time: 12 ms typical

• Data Transfer Rate: Up to 16.6 MB/s (PIO Mode 4)

• Form Factor: 3.5-inch half-height

• Power Requirements: +5 V and +12 V DC

Application Suitability

The ST3630A is ideal for legacy industrial control systems, CNC machines, test equipment, and embedded computers that require ATA/IDE storage. Its reliable design and proven technology make it suitable for applications where compatibility with older operating systems and controllers is essential.

Reliability and Legacy Support

Built with Seagate's proven manufacturing processes, the ST3630A offers reliable operation for extended periods. The drive includes advanced error correction and self-monitoring features. For systems requiring specific geometry settings, the drive supports user-configurable parameters to ensure compatibility with legacy BIOS and controllers.