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$3.89
ESP8266 ESP-01 ESP-01S Module Serial WiFi Wireless Transceiver Module
USB3.2-Gen1-HUB-4U
Industrial USB HUB USB3.2 Gen1 One-To-4U Onboard 7~36V DC power port For Multi Systems
Power-4b-Transfer-Extension-Cord
Raspberry Pi 4 model B 4B type C Power lengthen cable with switch
Mini-PCI-e-to-SD-Adapter
SD card adapter board Mini PCI e to SD adapter card Mini PCI e 52PIN interface module
21.5inch-FHD-Monitor-(B)
Raspberry Pi4B all in one 21.5inch capacitive touch screen HDMI interface FHD HD screen 1080×1920