This is history.
New boar 543E d is NodeMCU-DEVKIT-V1.0, see also https://github.com/nodemcu/nodemcu-devkit-v1.0
A development kit for NodeMCU firmware.
It will make NodeMCU more easy. With a micro USB cable, you can connect NodeMCU devkit to your laptop and flash it without any trouble, just like Arduino.
It is an open hardware, with ESP-12 core (4MBytes flash version).
Pin map with ESP-12.
It is designed by Altium Designer, and fully open–source. Now everyone can make their own NODEMCU.