This is an Apple Cinema Display 23-inch A1082. It's a product from 2004 (see photo 12). Please refer to photo 17 for the specifications and photo 18 for connection instructions. At first glance, I didn't see any scratches or stains. Also, I didn't notice any noticeable scratches or dead pixels when displaying an image. An Apple Mini DisplayPort to DVI Adapter (A1305) is included (photos 14, 15, and 16). This is used to connect to a Mac with a Mini DisplayPort, Thunderbolt port, or Thunderbolt 2 port. (※ However, the Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter cannot be used in conjunction with this, as it does not support Mini DisplayPort displays.) The user's guide has been digitized and will be copied onto a 16GB KIOXIA memory stick and included. This is a used item, so please consider purchasing only if you understand this.