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1set Breadboard MB102 Power Supply Module 3.3V/5V + MB-102 830 Points Solderless Prototype Bread Board Kit +65 Jumper Wires DIY

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30W Amplifier, DC 5V MP3 Decoder Board with Bluetooth 5.0 USB Module And Remote Control Suitable for 4-ohm 5-8 inch speakers.

ESP3232u Development Board with 2.4G Antenna Port Expansion Board Kit ESP32-32U BT Wifi Module Type-C 38PIN CP2102 ESP32-DevKitC

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XH-M229 Desktop PC Chassis Power ATX Transfer to Adapter Board Power Supply Circuit Outlet Module 24Pin Output Terminal 24 pins

30W Amplifier, DC 5V MP3 Decoder Board with Bluetooth 5.0 USB Module And Remote Control Suitable for 4-ohm 5-8 inch speakers.

BMS 3S/4S 5A 10A 20A 25A 40A 60A Li-ion Lithium Battery Charger Protection Board 18650 For Drill Motor 12V with Enhance/Balance