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AJMRTC MCP23017 IO Expansion Board, I2C Interface 16 Channel Digital IO Expander Module, Expand 16 I/O Pins for Raspberry Pi, STM32 Microcontroller, GPIO Extension Carrier Board
- Model #: MCP23017-I2C-IO16
- $10.49 –
- Free Shipping

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Form Factor Adapter Board for RPi Zero to 3B/3B+ Layout, Hardware Port Expander for Pi 3B HATs (Empty Board ONLY, No CPU)
- Type: Adapter Board
- LAN Chipset: Realtek RTL8125B
- LAN Speed: 10/100Mbps
- Max LAN Speed: 100Mbps
- Model #: 428579485791
- $37.99 –
- Free Shipping

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4 4GB Starter Kit with Pi 4 4GB Board, 32GB Card 4 Copper Heatsink 2 HD Out Cable 5V 3A Power Supply with OOff Case Cooling Fan Card Reader Screwdriver
- Model #: WUQ345436FN358
- $252.47 –
- Free Shipping

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R3 Project Most Complete Starter Kit with Tutorial Compatible with Arduino IDE (200+ Components)
- Model #: WUQ323GF58136
- $136.38 –
- Free Shipping

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AJMRTC Uninterruptible Power Supply UPS HAT for Raspberry Pi, Stable 5V Power Output, Smart Battery Backup Power Management Expansion Board
- Model #: AJ-JY00706
- $42.69 –
- Free Shipping






























