Raspberry Pi Experiment Platform Set With : Jumper High Speed Ethernet Cable, T GPIO, Breadboard, Acrylic Panel, And 40 Pin High Speed Ethernet Cable For 3 And R3 From Seeweb, $54.82

Adeept Raspberry Pi GPIO Breakout, T-Type GPIO Expansion Board +830 Points Solderless Breadboard+65pcs Jumper Cables +40pin Rainbow Ribbon Cable, Raspberry Pi GPIO Expansion Kit : Electronics

RPi Expansion Boards

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UCTRONICS GPIO Breakout Kit for Raspberry Pi Pico- Assembled Pi T- Type Breakout + 830 Tie Points Solderless Breadboard + 40 Pin Male - Female - Male Rainbow Ribbon Cable + 65pcs Jump Wires : Electronics

Sintron] New 40-Pin GPIO Extension Board Starter Kit with RGB LED Swi – Sintron Technology

RPi Expansion Boards

Raspberry Pi Experiment Platform, 65pcs Jumper Cable+t Gpio+breadboard+acrylic Panel+40 Pin Cable For Raspberry Pi 3 And Uno R3 - Demo Board - AliExpress

Diagram of Raspberry Pi and breadboard with jumper cables, LEDs, and

Adafruit Perma-Proto 40-Pin Raspberry Pi Half-Size PCB Kit [with 2x20 Header] : ID 4353 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits