This one is a complete ESP32 which fits inside a USB-A connector. The brains of the projects is the ESP32-D2WD which is a dual core chip with 2 Mb of memory, making it more than capable.

Peter Neufeld decided to hack cheap ESP32-C3 USB-C boards by adding a custom wire antenna, and more than doubled the WiFi range.

In the centre of the board is the P4 processor, above it is an ESP32-C6 which ... the USB-A and USB-C sockets, and the microcontrollers. Below the P4 is an expansion connector, to the left of ...