Optoma HD161X 1080p 3D DLP Home Theater Projector

HDCP 2.2?
Otherwise no chromecast/firestick/etc

Are you asking if the HDMI ports on this unit are HDCP 2.2 ?

If that is the question, no they are not. The 2 HDMI input ports on the HD161X are HDMI 1.4 version.