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2X 40 PIN GPIO Header Adapter Color-Coded Header Expansion Board for Raspberry Pi 400,Easy Expansion
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GPIO Header for Raspberry Pi A+/B+/Pi 2/Pi 3/Pi 4/Zero [2x20 Female Header] : ID 2222 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
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40 Pin (2x20) Header With Gpio Reference Pcb For Raspberry Pi - A+, B+, 2 And 3 - Integrated Circuits - AliExpress
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Amazon.com: GeeekPi Micro Connectors Raspberry Pi 40-pin GPIO 1 to 2 Expansion Board 2 x 20-pin Strip Dual Male Header Double Row Straight GPIO Connector Pin Header Compatible with Raspberry Pi(2Pack) : Electronics
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Raspberry Pi 400 GPIO Header 40 Pin GPIO Expansion Board for Raspberry Pi 400|Demo Board Accessories| - AliExpress
![Amazon.com: GeeekPi Micro Connectors Raspberry Pi 40-pin GPIO 1 to 2 Expansion Board 2 x 20-pin Strip Dual Male Header Double Row Straight GPIO Connector Pin Header Compatible with Raspberry Pi : Electronics Amazon.com: GeeekPi Micro Connectors Raspberry Pi 40-pin GPIO 1 to 2 Expansion Board 2 x 20-pin Strip Dual Male Header Double Row Straight GPIO Connector Pin Header Compatible with Raspberry Pi : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61WLAq+ujUL._AC_UF894,1000_QL80_.jpg)