2X Development Board USB Dongle Bluetooth Gateway MicroPython ESPHome K2X4
development board, onboard chip --D4,Flash size is 4MB.
Onboard USB to serial port chip CH343P, ceramic antenna.
The whole is a small U disk shape, exquisite and compact, can be used in some special scenarios such as Bluetooth WiFi gateway, as USB Dongle and so on.

Colour:Transparent
Material:PCB+Plastic
PCB board color is random, don't accept the specified color
The actual product may have slight color difference or difference, which not affect the use

Package Contents:
2 x Development Board