A. The ESP32 - S3 FH4R2 is a relatively integrated, low - power 2.4GHz Wi - Fi system - on - chip (SoC) solution. It supports Wi - Fi, has a built - in native USB, and also features some other new technologies, such as time - of - flight ranging technology. B. This system - on - chip has good power consumption and radio frequency performance among similar products, making it suitable for various application scenarios related to the Internet of Things (IoT), wearable electronic devices, etc. C. It uses a dual - core 240MHz Tensilica processor. The native USB supports being used as a keyboard/mouse, MIDI device, disk drive, etc. D. It has a built - in 4MB flash memory and 2MB PSRAM. E. There is 1 1.0 - 4P connector (ground, 3V3, SDA (GP 102), SCL (GP101)). F. It has 13 input/output pins. G. There is 1 RGB interface (GP1039). H. There is 1 LED (powered by a 3.3V power supply). I. There is 1 reset button (used to restart the device or enter the bootloader). J. There is 1 start button (GP100, used to enter the ROM bootloader or as an input). K. It is compatible with MicroPython, [relevant content missing in the original text] and ESP - IDF. L. It has a ceramic antenna. M. It has 4MB flash memory. N. It has 2MB PSRAM. O. It has 512KB SRAM. P. It has a 0.42 - inch OLED display. Q. It has a 3.3V voltage regulator with a 500mA output. R. Type: Development board. S. Model: ESP32 - S3. T. Color: Black. U. Material: Printed circuit board (PCB). V. Dimensions: 23.5x18 mm. W. Package contents: - 1 development board. - 4 pin headers. X. Only the above package contents are included, and other products may not be included. Y. Note: Light reflection and different displays may cause the color of the items in the picture to vary slightly from the actual product. The allowable measurement error is +/- 1 - 3 cm.