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Raspberry Pi Wall Adapter Power Supply - 5.1VDC, 3.0A, 15.3W (USB-C) - TOL-15448 - SparkFun Electronics
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Amazon.com: MakerFocus Raspberry Pi 4 Battery Pack UPS, RPI Pack Standard 4000mAh Raspberry Pi Battery USB Pack Raspberry Pi Latest Version V3Plus Expansion Board Power Supply Type-C for RPI 4B 3B+ 3B
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Official Raspberry Pi Power Supply 5.1V 3A with USB C [1.5 meter long] : ID 4298 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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