SoulBay [Reverse Polarity] 30W Universal AC DC Adapter Switching Power Supply Selectable Voltage with 9 Tips for 3V 4.5V 5V 6V 7.5V 9V 12V Household Electronics, 2000mA 2Amps Output Max

Reverse Polarity Power Adaptor: Most adapters only have single polarity, positive (+) or negative (-) polarity. This SoulBay AC Adapter owns Dual Polarity, reversible and changeable.
Versatile POWER SUPPLY: straightforward adjustment for All-in-one multi adapters and multi amp devices, solid and well built. Voltage range, connector jacks and polarity are Selectable.
WIDE APPLICATIONS: for router, speaker, monitor, camera, smartphone, led strip, piano, keyboard, effect pedal board, and a variety of household electronics require 3 volt, 4.5 volt, 5 volt, 6 volt, 7.5 volt, 9 volt, 12 volt DC output with 2000ma load.
Note: Not compatible with some Sensitive Electronics, such as AM/FM Radio. )
SAVES ON ADAPTERS: Own this adapter, you could use it for multiple devices and replace a lot old power adapters, savings on buying a new electronic device or extra original expensive power supply.
PACKAGE INCLUDES: 1 x 3-12V multi-voltage ac adapter, 9 x changeable adapter tips, 1 x key and 1 x user manual. Each adapter tip has the clear dimension mark, no mess and convenient for you!