The RSD–30G–3.3 is a DC/DC converter manufactured by Mean Well, a company known for their power supply solutions. It is a 30W, single output, 3.3V switching regulated DC power supply with a 4:1, wide-range input range of 4.5 to 18V DC. Its full structure includes a plastic case, internal cooling fan, and aluminum base plate with mounting holes. Features include a built-in active PFC function, short-circuit protection, over-voltage protection, over-load protection, and over-temperature protection. The output voltage is regulated and the total output power is up to 30W. Its efficiency is as high as 90%. The operating temperature is -40°C~+85°C (with derating) and the storage temperature is -40°C~+85°C. The product size is 70.5mm x 40.3mm x 28.5mm.