The 8 adapters in1, which can largely save your space and the one can replace a lot adapters. Attention: DC Plug Polarity: inner Positive(+), outer Negative(-), Polarity is irreversible. With safe and multiple function, it's easy to operate, and the adapter is very durable, it's secure to use. Equipped with 8 adapter plugs, the different size will fit for your appliances well, and solve your various problems. This adapter output is 3V/4.5V/5V/6V/7.5V/9V/12V. You can easily set the voltage by a little key, which included with the adapter. This AC/DC adapter can apply to most appliances, which the efficient voltage is from 3V to 12V. Brand SoulBay Connectivity Technology Barrel Connector Connector Type Barrel Connector Compatible Devices Game Consoles, Keyboards, Speakers Included Components Cable Special Feature Universal, AC DC Color Black Input Voltage 120 Volts (AC) Mounting Type Wall Mount Amperage 1.2 Amps 6059609