Dell does not test either in the lab. You will simply need to test it. The online Chromecast Hardware and broadband requirements states ="All Chromecast devices require a TV with High-bandwidth Digital Content Protection (HDCP) 1.3 or higher built-in. HDCP 2.2 is required to support 4K content." The online U2723QE User's Guide states =HDMI 2.0 (HDCP 2.2)
Can the HDMI port on this U2723QE be used to access Google Chromecast and Google TV (4K)?
U2723QE, support Chromecast?