The ESP8266 ESP-12E is like an Arduino with a builtin WiFi, the MCU and WiFi circuitry are in the same chip. Consider Arduino + WiFi Shield = ESP8266.
CH340 chip-driven official description:
WINDOWS driver USB to serial CH341 / CH340 installation package
Support WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA / Server 2008 / Win7 / Win8 / Win8.1 32 Bit / 64 and MAC
Through Microsoft’s digital signature authentication
In the computer end of the USB device emulation as a standard serial devices Serial COM
It contains the serial number and identification CH34X monitoring CH34X equipment swap library.
Download the appropriate driver CH341SER.zip