Walrus Audio Canvas: Power USB

The Walrus Audio Canvas: Power USB makes powering a pedalboard from USB sources simple and quiet. This compact converter bridges USB Power Delivery (PD) with the 24V EIAJ input found on modern pedalboard power units. Connect a laptop charger, high-wattage phone adapter or a USB PD battery pack to the converter, and your pedals run clean—no wall outlet required. The Power USB adapts to busy gig schedules, letting you perform in outdoor spaces or venues with limited outlets. Use the extra variable voltage output to power a single pedal at your desk, or add a new pedal to your live rig. The unit fits easily under pedalboards and comes with custom mounting hardware for secure installation.

USB Power Delivery Adapts Any Setup

Power USB converts USB PD into pedal-ready power, bridging laptop chargers, battery packs and phone adapters to the board supply. It senses which source is available and switches automatically, prioritizing the main DC supply when it’s connected. This feature helps guitarists keep their effects powered, whether on stage or busking. The automatic switching means you don’t need to worry about power interruptions during a set.

Variable Voltage Output Expands Pedal Choices

This converter provides a variable voltage output for 9V, 12V or 18V needs. It delivers up to 500mA at 9V, 375mA at 12V or 250mA at 18V, all silent and isolated. The variable output lets you run a pedal with higher voltage requirements or add another effect to your board without needing a separate supply. The Power USB’s flexibility helps players experiment with different pedals and sounds.

Simple Setup and Clear Status Indicators

Setup is straightforward. Use the included cables and bracket to connect and mount the converter securely under your pedalboard. The LED display shows remaining power and output status at a glance, so you know your rig is running smoothly. Custom barrel cables with angled and straight plugs fit tight spaces, making for a clean installation. The converter accepts standard 2.1 mm barrel cables, adding more options for your setup.

Durable Construction for Busy Schedules

Walrus Audio designed the Power USB with a tough aluminum enclosure and slim profile. It weighs just 0.3 pounds and fits under most pedalboards, making it easy to transport and install. Universal mounting brackets keep the converter secure during travel, while the internal switch-mode supply architecture reduces noise and increases efficiency. Each output is isolated and filtered to protect pedals from interference and keep your sound clean.

Player Experience Using Canvas: Power USB

Guitarists, bassists and keyboardists who need quiet power in unpredictable venues benefit from the Power USB’s portable setup. The automatic source switching, variable voltage and compact design help you keep your effects running in any situation, from a festival to a rehearsal space. If you want a pedalboard that runs on clean power wherever you play, this converter makes it possible—without searching for outlets or carrying extra gear.