The Strymon Zuma R300 is a compact, low-profile power supply offering five isolated outputs—four fixed at 9V (500mA) and one switchable to 9V, 12V, or 18V. It delivers clean, noise-free power using advanced filtering, pre-regulation, and optical isolation. Designed to fit under most pedalboards, it features a lightweight aluminum chassis, a 24V Thru jack for expansion, and global voltage compatibility, making it ideal for both studio and touring setups.