Universal Switching AC Adapter for Audio Amplifiers DEL 12V/3A 5.5mm x 2.5mm Center Plus Specification, Compatible with 5.5mm x 2.1mm, PSE Standard Specifications: Input AC100~240V 50Hz/60Hz Output DC12V/Maximum 3A Polarity: Center Plus Output Plug: Outer diameter 5.5φ (inner diameter 2.5φ) * 11.0mm, Center Plus (compatible with 2.1mm DC jack) This is a 12V 3A universal AC adapter. It can be used for other audio-related devices if the specifications match. Please be sure to check the device on the receiving end before use. If connected incorrectly to a device outside of the specifications, the device may be damaged. If you are purchasing for use with devices other than those supported, please refrain from purchasing if you do not have knowledge of the specifications. *The shape of the cord and the design of the main unit may differ from the photos depending on the production lot, but the function and quality remain the same. 【Notes】 *Please note that the product will be delivered in simple packaging. *Please note that a Japanese instruction manual is not included. We ship in simple packaging to reduce the thickness. Please understand the above before ordering.