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Raspberry pi 4 Model B aluminum silver case, with Fan Heatsink
NANO-HEATSINK
Jetson Nano heatsink Aluminum heatsink Cooler with Bracket shrapnel reserved thermal grease
M.2-Key-B-to-USB3.0
M.2 Key B to USB3.0 adapter board with SIM card slot 3G/4G/5G/LTE network card module
USB-TO-4CH-RS485
Industrial USB TO 4Ch RS485 Converter Multi Protection Circuits Multi Systems Support
UNO-R3-Micro
UNO R3 Development Board Improved version MICRO Interface ATmega328P Singlechip Programming Board