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40 Pin GPIO Extension Cable for any 2x20 Pin Raspberry Pi [150mm / 6 long] : ID 4823 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Raspberry Pi 40 Pin GPIO Extension Header Double Row Right Angle GPIO Edge Extension Connector for Pi 4B 3B+ 3B Zero 2 W - AliExpress
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Amazon.com: 40 PIN GPIO Header Adapter Color-Coded Header Expansion Board for Raspberry Pi 400,Easy Expansion : Electronics
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