This is a tested and fully functional Mitsumi D359M3 3.5-inch floppy disk drive. It was carefully removed from a working vintage desktop computer and verified to power on, read, and write disks properly.

Condition:

✅ Tested and working

✅ Clean contacts and smooth eject mechanism

✅ Light cosmetic wear from normal use (see photos)

Brand: Mitsumi

Model: D359M3

Type: 3.5" Floppy Disk Drive (1.44 MB)

Interface: 34-pin ribbon connector

Power: 4-pin Molex (5 V)

Color: Standard gray faceplate

Made in: China

Compatibility:

Fits most vintage PCs, including Compaq, Dell, HP, and custom builds using 34-pin floppy connections.