Replace your lost or failed power adapter. This 12V DC power supply can provide a power source for any electronic device that has an M-type barrel and requires 12volts and up to 2amps of power. The power supply is a perfect replacement for the lost or damaged 12-volt 2-amp power adapter you've used to power your existing electronics. When downtime isn't an option, keeping spare power adapters on hand ensures that you won't be left waiting for a replacement to arrive or have to replace your devices just for the sake of a compatible power source.