: An upgraded version with a faster 168MHz processor (STM32F407VET6), improved anti-interference, and built-in WiFi support. MKS Robin E3

: A variant that offers enhanced connectivity and universal firmware compatibility for diverse printer configurations. Technical Specifications MKS Robin Nano V1.3 MKS Robin Nano V3.1 STM32F407VET6 (168MHz) STM32F407VET6 (168MHz) Flash / RAM 512KB / 192KB 1024KB / 192KB Connectivity TF Card, USB, WiFi Module TF Card, USB Disk, Virtual USB, WiFi Driver Support Pluggable Drivers Integrated or Pluggable TMC2209 Voltage Input Key Capabilities

: A specialized "drop-in" replacement board designed specifically for the Creality Ender 3