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Breadboard Power Supply 5/3.3V+PP3 Batt Connector-Prototype ,microcontroller,PIC

Trend Breakout Box with RS232 Monitor

DFPlayer Mini - MP3 & WAV Player Module, Prototyping Parts - Microcontroller

Trend Model 335 V.35 Tri-State Breakout Box For Testing & Reconfiguration

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Electroplan IM24 - V24/RS232 Interface Breakout and Monitor

TIS 1100 Socket Breakout Box R2, R1, R2 Socket Adapter