MO Disk 640MB 3.5"
Maxell MO Disk 640MB 3.5", Magneto optical disk, 1.41 oz (40 g), 3.54 x 0.236 x 3.7" (90 x 6 x 94 mm), Mark Edge
Maxell MO Disk 640MB 3.5". Product type: Magneto optical disk. Weight: 1.41 oz (40 g). Dimensions (WxDxH): 3.54 x 0.236 x 3.7" (90 x 6 x 94 mm). Recording technology: Mark Edge