Item Type: ESP8266 Module Material: Resin Package List 1 x Module 1 x Pin Header Match the appropriate model before use 1USB TO SERIAL: Adopt series USB to serial port chip, which can replace CP2014 or PL2303 as a general USB to serial port module. 2GOOD PERFORMANCE: Add ESP32 and ESP8266 automatic programming circuits, and add a 6P pin header to your circuit board to improve performance. 3EASY OPERATION: The development module is easy to use, one key programming can be realized by connecting this module, with convenient debugging. 4EASY TO INSTALL: The ESP8266 development board is compact, with standard interface, equipped with pin header, which is easy to install and use. 5RESIN MATERIAL: Using excellent resin material, the serial port programming module has high toughness, environmental protection and good durability.