Arduino Leonardo without Headers — Arduino Official Store

Arduino Nano Every Microcontroller with Headers - RobotShop

Arduino Nano ESP32 with Headers - RobotShop

Arduino Nano ESP32 with Headers - RobotShop

Arduino Leonardo without headers - ATmega32u4

Arduino Nano 3.0 (COMPATIBLE) - no soldered headers

Note: This product is discontinued, but you can purchase the Seeeduino Lite, which is an equivalent alternative that can be used instead.

Arduino Leonardo ATmega32u4 without headers

Arduino GIGA R1 WiFi — Arduino Official Store

Arduino Micro without headers — Arduino Official Store

The Arduino Ethernet Shield 2 connects your Arduino to the internet in mere minutes. Just plug this module onto your Arduino Board, connect it to your network with an RJ45 cable (not included) and follow a few simple steps to start controlling your world through the internet. As always with Arduino, every element of the platform – hardware, software and documentation – is freely available and open-source.

Arduino Ethernet Shield 2 A000024

Arduino Zero — Arduino Official Store

Arduino Micro USB Microcontroller

Original ,Arduino Leonardo without Headers A000052 Arduino Leonardo A000057 - AliExpress