The AS-DLVR-I2C airspeed sensor is a high-end airspeed sensor designed for RC aircraft with a flight controller. It connects via the I2C bus using SCL and SDA pads (similar to a compass). The sensor is based on the DLVR-L10D chip and is the best available airspeed sensor supported by ArduPilot and iNav. It is the only sensor that requires no calibration.
ArduPilot has removed default support for DLVR sensors over I2C on flight controllers with 1 MB flash memory (such as STM32F405 or F745 series). A more powerful processor like the H743 is recommended, or you can create a custom firmware build.