The NodeMCU V3 ESP8266 ESP-12E WiFi Development Board with CH340G USB-to-serial chip is an easy-to-use, cost-effective solution for IoT and embedded projects. Featuring a square black PCB design, pre-soldered (or solderable) pin headers, and a Type-C interface, it is ideal for rapid prototyping, DIY electronics, smart home devices. NodeMCU V3 Design: Compatible with the popular NodeMCU firmware, supports Lua scripting and Arduino IDE programming for flexible development. Soldering Pin Headers: Equipped with through-holes and pin headers for easy soldering, plug-in use on breadboards, or integration into custom PCBs. Color: Black Material: PCB Package Contents: 3*ESP8266 Serial Wireless Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.