Get ready to power up your musical gear with the Roland Boss PSA-120S AC Adapter! This high-quality adapter is perfect for Boss products and other musical instruments that require a 9V, 500mA power supply. With its durable design and dependable performance, you can be sure that your music will never stop. Made in China, this unit quantity of one AC adapter is the perfect addition to your gear collection, helping you to deliver the sounds you want with ease and efficiency.