Accepting universal inputs from 90 to 264 vac, 47 to 63 Hz, TPA power supplies meet international safety and Class B EMI standards in ranges from 3.3V to 48V at 15W to 30W. All models come with a standard USA two-prong plug and adapters are available to accommodate local socket configurations. The accompanying small, wall-mount, plug-in adapters can power a wide range of electronic equipment. Price: $15 each/OEM qty. for 15W model.