The MEGA 2560 is designed for more complex projects. With 54 digital I/O pins, 16 analog inputs and a larger space for your sketch it is the recommended board for 3D printers and robotics projects. This gives your projects plenty of room and opportunities.
KEYESTUIDO Mega 2560 Plus Board Compatible With ARDUINO MEGA 2560 REV3
Arduino Mega 2560 Rev3 — Arduino Online Shop
Nettigo: Arduino Mega 2560 Rev3 [Arduino A000067]
Arduino Mega2560 Rev3 - Oomipood
Arduino Mega 2560 Rev3 — makerelectronics
Arduino Compatible Base Board For Raspberry Pi Compute Module 4
A-Star 32U4 Robot Controller SV with Raspberry Pi Bridges
Arduino Mega2560 Rev3 - Oomipood
Adapter Board for Arduino ARPI600; Dev Board Raspberry Pi
Arduino Mega 2560 Microcontroller Rev3 - RobotShop
KEYESTUIDO Mega 2560 Plus Board Compatible With ARDUINO MEGA 2560 REV3
Arduino Mega 2560 Rev3 - ProteShea
Page 2 - Arduino Shield extenders findings Botland - Robotic Shop
A-Star 32U4 Robot Controller LV with Raspberry Pi Bridges
Particle - Melopero Electronics