- Brand: Griffin - Model Name: PowerMate USB - Color: Black - Accessories: Instruction manual Thank you for viewing. This product is a Griffin PowerMate USB. By installing the driver, you can control the volume and shortcut keys with the dial. Although it is used, there are no noticeable scratches and it has little wear. Operation has been confirmed, but because the driver is old, some settings were not reflected correctly in a Windows 11 environment (e.g., LED light operation). The items in the photos are all that are included. Although it is a beautiful item, it is a used item, so please refrain from purchasing if you are looking for perfection. Thank you. *Added 9/6: Price reduced