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Power Supply Automatic Switching Module Battery Power Failure Automatic Charging Control Board Emergency Circuit Breaker Module

MAX3232 RS232 to TTL Serial Port Converter Module DB9 Connector MAX232 For Arduino

5V 9V 12V Type-C 18650 Lithium Battery Boost Step Up Module UPS Uninterruptible Power Supply Charge Discharge Same Time 1A

MFRC-522 rc522 RFID RF sensor module to send S50 Fudan card, watch keychain NMD Raspberry Pi

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MB102 Breadboard Power Supply Board Module MB102 Breadboard Dedicated Power Module 2-Channel 3.3V5V MB102 Solderless Bread Board

1S Ternary Lithium Battery Electricity Meter DC 3.7-4.2V Power Display Module Indicator LED Light Mini Battery Electricity Meter

DC 5V Mini Ultrasonic Humidifier Module Dual Spray Three Stage Atomizer Mist Maker with Driver Circuit Board for DIY Projects

Bluetooth module 5.3 Audio transmitter module Stereo GFSK transceiver Earphone board Wireless speaker KCX_ BT_ EMITTER 5

XL334P4 USB2.0 4-port Controller Expansion Module USB 2.0 to 4 Channel Way Splitter USB-HUB Type-C Extender Board 40MB/S