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2.1mm 5VDC Barrel Jack to USB C Adapter : ID 4536 : $5.50 : Adafruit Industries, Unique & fun DIY electronics and kits
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New USB-C version 2.1 spec will more than double power delivery to 240W, up from 100W: Digital Photography Review
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5V DC 5.5 * 2.1 mm Power Jack USB 3.1 Type C USB-C Type-c 5.5mm *2.1mm Mini USB & Micro USB DC Power Connector Adapter _ - AliExpress Mobile
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