This is a 6V DC, 1A, 6W, switched-mode power supply with an output of 5.5/2.1 and a plug manufactured by Espe. The ESPE-0606-W2E-2155+OP is a small, compact power supply that is perfect for powering a variety of electronic devices including microcontrollers, sensors, and more. This power supply features an array of safety features such as overload, short circuit, and over temperature protection to ensure the safety of connected devices. Its 5.5/2.1 output is ideal for powering many different devices easily and safely.