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5V 4A (4000mA) switching power supply - UL Listed : ID 1466 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: AC Adapter DC 4.5V 0.5A Switching Power Supply 500mA US Plug DC 3.5mm x 1.35mm : Electronics
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4.5V 1.5A dc power adapter 4.5 volt 1.5 amp Power Supply input 100-240v DC 5.5x2.5 Power transformer - AliExpress
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Amazon.com: UpBright 5V 4A AC/DC Adapter Compatible with Kensington K33970 M01166 SD3000v K33970US K33970EU K33972 M01167 SD3500v K33972US USB 3.0 SuperSpeed Dock Docking Station 5VDC 4.0A Power Supply Charger : Electronics
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