The external-antenna variant of the ESP32-C3-MINI-1: same ESP32-C3 chip, same 4 MB (N4X/H4X) or 8 MB (H8X) flash inside the chip package, but the RF interface is an external antenna connector instead of the PCB antenna. In MCUID's hardware chain — chip → module → board — this page holds the module facts; chip capabilities live on the ESP32-C3 chip page.
Start from the board: ESP32-C3-DevKitM-1 — the official ordering table for the board lists the PCB-antenna SKUs; the -1U module is identified by its connector.
What the module decides
- Antenna — external antenna connector; antenna choice and placement become your design decision, not the module's.