This is a genuine AC adapter for the PC Engine DUO. It has been tested and confirmed to work with a PC Engine DUO console. There are signs of damage such as scratches and dirt. Please check the photos for the condition. *If it's difficult to see in the photos, please comment before purchasing. I will add more photos if needed. Instant purchase without comment is OK. Thank you. **I am also listing PC Engine software. If you purchase multiple items, I can offer a discount (around the amount saved on shipping costs if items are shipped together). I cannot offer discounts on single item purchases.** Also, please consult with me before purchasing if you wish to have items shipped together. I cannot accommodate combined shipping after the purchase. *Shipping will be via Yu-Packet Plus. Depending on the size of the items, I may not be able to combine them. *Yu-Packet Plus does not allow for specifying a delivery date or time. *Although I have confirmed the item is working, it is a very old product, and I cannot guarantee its operation after purchase. I also cannot offer returns, refunds, or cancellations. Please understand this before purchasing.