I2C Driver for 0-10V DAC I2C

Thinking of buying (2) One Channel 0-10V DAC I2C Digital To Analog Converters.
For use with an Arduino Uno.
I don’t see a I2C driver.
I have the SPI.h but I’m used to using CS (chip select) to activate the individual boards.

Wire.h

Please note we cannot provide in depth technical support for this product as it is part of our ultra low cost product line and does not have the margin to provide enterprise level support. These devices are intended for experienced users.

Experienced users would like a schematic.