The ELG-75-12D2-3Y is a power supply from Mean Well, a manufacturer of power converters and switching power supplies. The ELG-75-12D2-3Y is a type of DC-DC converter, which takes a 12V DC input and outputs a stable 75W output voltage of 3.3V and a maximum output current of 23A. It offers a very high efficiency of up to 97%, and has a wide operating temperature range of -40 to +90 degrees celsius. The ELG-75-12D2-3Y features a built-in active PFC function that facilitates higher power factor and lower harmonic distortion. Additionally, it also features an intelligent fan speed control system, allowing the fan to operate efficiently while minimising noise in most applications. This power supply is widely used in control systems, communication devices, medical, lighting, and industrial automation.