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AC DC 110V 220V to 3.3V 700mA 2.3W Switching Switch Power Supply Buck Converter Regulated Step Down Voltage Regulator Module - AliExpress
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Amazon.com: JBtek Breadboard Power Supply Module 3.3V/5V for Arduino Board Solderless Breadboard : Electronics
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In stock tiny AC Switchmode 12 watt regulated power supply, with 3.3 volt 3 amp DC output, 3.3 volt AC wall mount adapter.
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