NodeMCU v2 Amica ESP8266 CP2102 4MB WiFi Microcontroller ESP-12E ESP12

NodeMCU v2 Amica ESP8266 CP2102 4MB WiFi Microcontroller ESP-12E ESP12 - This module is an ideal version, still using the yellow Tantalum Capacitor (vs the black color which is inferior) and more premium components. 
It will be more stable when used in the Lab or in the field. (See picture no.3)
It's not the CHEAPER NodeMCU v3 as it's bigger and uses the inferior USB Chip, the CH340.
Facts about v3:
1. Not a continuation of NodeMCU v2 and produced by a different manufacturer
2. Bigger size (58 x 31mm) than v2 (48 x 26mm)
3. Not breadboard-friendly, v3 will fill the entire breadboard pin, so it can't be used to connect other peripherals.
(See picture no.5)

Features:
+ MCU: Xtensa Single-core 32-bit L106
+ Typical Frequency: 80 MHz
+ Memory:
32 KiB instruction RAM
32 KiB instruction cache RAM
80 KiB user-data RAM
16 KiB ETS system-data RAM
+ External QSPI flash: 4 MB
+ Wireless 802.11 b/g/n standards
+ Support STA / AP / STA + AP three operating modes
+ Built-in TCP / IP protocol stack to support multiple TCP Client connections (5 max)
+ D0 ~ D8, SD1 ~ SD3: used as GPIO, PWM, IIC, etc. Drive Port 15mA
+ 10-bit ADC
+ Power input: 4.5~9V (10V Max), USB-powered, providing USB debugging interface
+ USB interface chip: CP2102
+ Current job: keep sending: 70mA (200mA Max), Standby: <200uA
+ Transfer rate: 110 - 460800bps
+ Support UART / GPIO data communication interface
+ Remote firmware upgrade (OTA)
+ Smart Link supports intelligent networking capabilities
+ Operating temperature: -40 ~ 125°C
+ Size: 48.5 x 25mm
+ Weight: about 7g