This 12V DC power supply can provide a power source for any electronic device that has an M-type barrel and requires 12 volts and up to 2 amps of power.Replace your failed or lost power adapterThe 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.Keep a spare power adapter on handWhen 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.This 12V 2A DC power supply is a direct replacement for the power adapters included with the following StarTech.com products:80 m VGA to Cat 5 Monitor Extender Kit1 km VDSL2 Extender Kit40 km Gigabit Single Mode Fiber Media Converter LC550 m Gigabit Single Mode Fiber Media Converter LC550 m Gigabit Multi Mode Fiber Media Converter SC2 km Fiber Media Converter Multi Mode SC2 km Multi ModeFiber Media Converter STUSB