Overview
The Samsung SFD-321B is a 3.5-inch dual-density micro floppy disk drive engineered for reliable data storage and retrieval on legacy computer systems. This double-sided drive is designed for high-density data storage and retrieval, supporting multiple storage modes for backward compatibility. The Samsung SFD-321B offers users the ability to retrieve and store data on floppy disks with a capacity of 1.44 MB. It is equipped with ATAPI I/O ports, allowing for easy connectivity to compatible systems.
Key Features
- Supports three modes: 1MB (low density), 1.6MB (high density), and 2MB (high density)
- Mean Time Between Failures (MTBF) of 30,000 hours, built to be reliable and durable
- Selectable Disk Change or Ready signal, selectable LED color, and customizable bezel and button colors
- Standard 5V DC power supply with 0.7A typical draw
- Compact 3.5-inch form factor for internal mounting
- Compliant with international safety standards such as CE, CSA, UL, TUV, MIC, BSMI, and FCC
Technical Specifications
Power Requirements: 5V DC ± 5%, 0.7A typical
Storage Capacity: 1.44 MB (standard mode)
Media Format: 3.5-inch micro floppy disk
Interface: ATAPI
Drive Speed: 300 RPM
Form Factor: 3.5-inch internal drive
Physical Dimensions: 5.25″ W × 1.6″ H × 8″ D (approximate)
Weight: 460 grams (16.2 oz)
MTBF: 30,000 power-on hours
Seek Time: ~150 ms average
Data Transfer Rate: 500 kbps typical
Typical Applications
- Legacy computer system restoration and repair
- Vintage PC and Macintosh compatibility
- Data recovery from existing floppy disk archives
- Industrial equipment requiring floppy-based boot or configuration media
- Educational institutions maintaining legacy hardware labs
- System integrators supporting customer legacy installations
Compatibility & Replacements
Compatible With
- Windows XP, Windows 2000, Windows ME, Windows 98, Windows 98 SE, Mac OS X 10.2, Mac OS X 10.1, Mac OS 9.x, and Mac OS 8.6
- IBM-compatible PCs with standard floppy drive bays
- Systems supporting ATAPI-connected floppy drives
- Desktop and tower form factor computers
Replaces / Drop-In Replacement For
- Samsung SFD-321B/LEB
- Samsung SFD-321B/LEH
- Samsung SFD-321B/LFHSE
- Comparable 1.44MB 3.5-inch floppy drives from manufacturer era
Works With
- Standard 3.5-inch floppy disks (1.44 MB format)
- Low-density (1 MB) floppy media via dual-density support
- Legacy computer BIOS and boot media
- Parallel port and IDE-based floppy controllers
- DOS, Windows, and Mac OS file systems










