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Step-Down Module, CE009 5V to 3.3V DC-DC USB Power Supply Module Step-Down Buck Converter Module : Electronics
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Micro USB to 5V to 3.3V AMS1117 3.3V regulated power supply module USB to 3.3V module|module ams1117|module 5vmodule usb - AliExpress
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2p USB DC 5V to 3.3V DC/DC Step-Down Converter Power Supply Module AMS1117- 3.3V [CE009*2] - USD $1.99 : canton-electronics.com
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Amazon.com: FTDI chip USB to 3.3v TTL UART Serial Cable, Wire end, 6ft, TTL-232R-3V3-WE Compatible : Electronics
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