This is a variant of SH-ESP32 with an external antenna connector. Due to the external antenna connector, the device has not been certified and is sold for development and laboratory purposes only.
Other than being based on ESP32-WROOM32-U and having an external U.fl antenna connector instead of a built-in PCB antenna, this device is identical to SH-ESP32. Refer to the SH-ESP32 product page for more details.
Note that the sales package does not include the antenna.