These are breakout boards for a FPC/FFC cables. They break-out the FPC cable connections to a double row of plated through holes with 2.54 mm (0.1”) spacing, making it suitable for use in prototyping perfboard or connecting with DuPont jumper wires.
0.5mm FPC/FFC Adapter Flat Flexible Cable Converter Breakout PCB Board 6P~40 Pin
???????? 0.3mm FPC FFC flat flexible cable adapters, converters, breakout PCB boards
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