Please note. This product is for 20 amps. AudioQuest / FireBird High Current 20AMP AC Power Cable 2.0m (NRGFIREBHCUS022) It seems that the connector shape on the back side of the amplifier is a new ingenuity in the 20 amp shape compared to the 15 amp one. Why don't you match the international standard of 220V 60Hz 20 amperes in Japan and the world in line with the international standard of Japan? Advantages such as reduced power transmission loss, improved image and sound quality, stabilization of personal computers, and fast charging of PHEVs as the World Standard.