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for Raspberry Pi 4 PoE HAT with Cooling Fan, Mini Power Over Ethernet Expansion Board for Raspberry Pi 4 B, 3 B+ and Rackmount
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  • $56.97 
  • Free Shipping
ESP32 Dual-Channel MOS Switch Module DC5-60V On-Board ESP32-32E WiFi and BLE Module
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  • $20.99 
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PoE HAT for Raspberry Pi 4B/3B+, Power Over Ethernet (PoE) Support 802.3af, Compatible with Official Case, Supports Cooling Fan
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  • $49.99 
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RPi PoE Relay Board Module for Raspberry Pi 3B+ 4B
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  • $61.48 
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8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case
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  • $147.72 
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Industrial Serial Server RS485 to Ethernet Converter TCP/IP to Serial RS485 to RJ45 Modbus/MQTT Gateway RS485 to JSON, etc
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  • $82.05 
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Waveshare ETH-USB-HUB-Box for Raspberry Pi Zero Series
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  • $52.99 
  • $5.99 Shipping