Be sure to add me to your favorites list Genuine Korg Power Supply Model KAC-301, a 1980's Model 9 Volt AC Adapter / Power Supply for Many Units, Genuine Vintage Korg Part! This is a good cosmetic condition and great working condition vintage Korg power supply for many older Korg instruments that need a 9 Volt with these specifications. It's model KAC-301 and is from the 1980's, so models like the Poly 800 synthesizer, Korg SuperDrums drum machine, and the 707 FM performance synth keyboard can use it, plus some newer models as well. It works perfectly, with some normal scuffs from previous use. This is the real deal, not a knockoff. Old school KORG, Made in Japan! Manufacturer: Korg Model: KAC-301 Input: AC 100V 50/60Hz 6VA Output: DC 9V 300mA Polarity: negative (-) tip Thanks for looking! Check out my Store!