640MB MO drive with USB connection, compatible with Windows and Mac. - Brand: BUFFALO - Model Name: MOU-640R - Connectivity: USB - Capacity: 640MB - Included items: AC adapter, connection cable, software CD, floppy disk - Supported OS: Windows, Mac [Notes] ● The condition is relatively good, but please understand that this is a used item. There are scratches, discoloration due to aging, and signs of use on the main unit. All included items are as shown in the photos. (Will be shipped with the original box) I used it without any problems on my previous computer, and I have confirmed that it powers on recently.