BASEUS 9V 3A 27W AC Adapter with 6 Tips and Polarity Cable

Universal 9 V 3 A power supply

This 27 W AC adapter delivers a regulated 9 V output at up to 3 A and automatically supports any device that draws 300 mA to 3000 mA. It accepts mains voltages from 100 V to 240 V at 50 Hz or 60 Hz, making it suitable for worldwide use. The unit is designed for 9 V electronics such as speakers, keyboards, guitar pedals, Arduino boards, security cameras, routers and similar household devices.

Steady output with full protection

Under continuous load the adapter maintains a stable 9 V rail while its built-in safeguards — short-circuit, over-current, over-voltage, over-heating and surge protection — interrupt power before components can be damaged. The 0.5 A input rating at 100–240 V ensures the supply runs cool during extended sessions, so connected equipment receives clean power without voltage sag or thermal throttling.

Six swappable tips and polarity cable

A 5.5 × 2.1 mm barrel plug ships with six interchangeable tips, covering the majority of 9 V device connectors encountered in daily use. An included reverse-polarity cable converts the standard centre-positive pinout to centre-negative, allowing immediate compatibility with guitar pedals and other centre-negative gear. The fixed cable and compact brick format keep the setup tidy on a desk, pedalboard or bench.