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Adjustable breadboard power supply kit [v1.0] : ID 184 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: Testeronics 7 in 1 Breadboard Power Module Kit Compatible for Arduino/Raspberry Pi| 2PCS 3.3V/5V Power Supply Modules | 9V/1A Power Adaptor | 2PCS Solderless Breadboard 400 Points|65 PCS Jumper Wires : Electronics
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