External MO drive (body only) *Please note that the compatible power adapter and USB cable are not included in the listing. One blank MO disk is also included. - Model: MD 640 MB - Color: Silver - Type: External MO drive - Disk Capacity: 640 MB Thank you for viewing. I have confirmed the operation, such as power-on and reading data from the MO disk, on my PC environment, but I cannot guarantee the operation as it may depend on your environment. This is a very old device, so there is some wear and tear.