Please read the profile section before purchasing. This is a set of a compatible AC adapter (replacement) that can be used equivalently to the AC adapter (NEC PAD-125) for the PC Engine Super CD-ROM2. Unlike the original AC adapter, it is very light in weight and is a safe AC adapter that has been PSE certified. (Most of the other sellers' products do not have PSE certification) The specifications are as follows: Compatible models: PC Engine Super CD-ROM2 (PC Engine CD-ROM2 is not supported) Included items: AC adapter (12V/2A, PSE certified) and plug adapter (All included items are new and have only been tested for operation.) How to use it is very simple. ① Plug the AC adapter into the wall outlet. ② Insert the DC plug of the AC adapter into the DC jack of the PC Engine Super CD-ROM2, which is connected to the PC Engine (white, Core Grafx, Core Grafx 2). ③ Turn on the PC Engine. ※ ① and ② do not have to be in order. ※ To turn on the Super CD-ROM2, you need to connect it to the PC Engine with the main unit connection cable, as well as the expansion bus of the PC Engine. This cable is not handled by us. If you search for "Super CD-ROM2 main unit connection cable" within Mercari, there is a seller who sells it for 1480 yen, so please purchase it first if you don't have it. ※ Although the DC plug may be physically connected to game consoles other than the PC Engine Super CD-ROM2, please never use it for game consoles other than the PC Engine Super CD-ROM2. Due to differences in voltage and polarity, the game console may malfunction. In addition, this product can be returned if it cannot be turned on. Please read the following return conditions carefully before purchasing. ● Guarantee You can return the product if it cannot be turned on, regardless of whether the problem is with the AC adapter or the device. If you wish to return the product, please contact us via the comment section within 14 days of receiving the product. Please return the product at your expense using a method that allows for tracking (such as Click Post, Yu-Packet, Special Recorded Mail, or Letter Pack). You will be responsible for the return shipping costs.