Check the listing for details. American DJ EC3FER Outlet Expander. Condition: Used. Listed at 3.97 USD. The American DJ EC3FER Outlet Expander is a versatile accessory designed to expand electrical outlets for use with various musical instruments and gear. With the brand being ACCU CABLE, you can trust in the quality and reliability of this product to seamlessly power your equipment. This outlet expander allows for easy and convenient use of multiple devices at once, making it a must-have for musicians and audio professionals looking to power their setups efficiently.