Please be sure to read the entire description before purchasing. This is a PC Engine DUO-R. I received it used from an acquaintance, but it has been stored in a storage room without being used. There are scratches, stains, and yellowing throughout. The instruction manual is not included. This item will be provided as-is. [Included Items] Controller, power adapter, connection cable (slightly poor connection, causing image distortion), memory base (please be sure to read the following notes) [Condition] I confirmed its operation last year. It worked normally at that time, and I played it for about an hour, but I couldn't play with it because I didn't have any cartridges. This time, I only checked the power supply at the time of listing. Since I didn't have any software, I couldn't actually play it. (Notes) The memory base has not been tested for operation. Also, the memory base was reportedly damaged and repaired at the time, but I couldn't tell by looking at it. There was no rust on the electrode part, but it is unknown whether it works. Therefore, this will be provided as-is without operational confirmation. (Supplement) The battery compartment, especially the sliding part, is very stiff and seems to be easily broken, so please open it slowly, as other sellers have also warned. I opened the battery compartment only once when taking the photos this time, and although it was stiff, it did not break. Please only purchase if you understand and agree to these conditions. Returns and exchanges are not accepted. Please refrain from purchasing if you are overly concerned about details.