3M 5-inch floppy disks were a widely used magnetic storage medium from the 1980s to the 1990s, and the Sumitomo 3M brand, in particular, was highly regarded for its reliability in Japan. ◎ Basic Specifications - 2DD (Double Density) - Capacity: Approximately 640KB to 720KB (varies depending on the format) - Compatible models: PC-8801, FM-7, X1, etc. - Packaging: Paper sleeve containing 10 disks ◎ Features - High-quality magnetic material and stable recording performance: 3M is also famous for its magnetic tape technology, and that technology is utilized in its floppy disks. - Durability and compatibility: Stable operation has been confirmed on many domestic retro PCs, and there are still many users looking for working disks even now.