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Amazon.com: UCTRONICS PoE hat for Raspberry Pi, 5V 2.5A Max 802.3af Compliant, Mini Power Over Ethernet Expansion Board with Cooling Fan for Raspberry Pi 4B, 3B+ : Electronics
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Amazon.com: Waveshare Ethernet/USB HUB HAT (B) for Raspberry Pi Series 1x RJ45 Ethernet Port 3X USB 2.0 Ports : Electronics
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