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50 pcs 2.54 mm Pitch Dual Spacer Receptacle Socket GPIO Header for RaspberryPi A+/B+/Pi 2/Pi 3 Tall 2x20 Pin Female Header DIP|Connectors| - AliExpress
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Amazon.com: Raspberry Pi 400 GPIO Header Expansion Adapter, with Color-Coded Header,Easy Connect to Your Pi400 : Electronics
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2x20 pin IDC Box Header - Raspberry Pi A+/B+/Pi 2/Pi 3/Pi 4 : ID 1993 : $0.75 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: Waveshare 400 GPIO Header Adapter Compatible with Raspberry Pi with Header Expansion 2X 40PIN Header : Electronics
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