@wizard I’ve wired the project into 4 segments of 9 strips each. Regarding the output expander’s max power distribution of 15A—my original thought was to have power, ground and data coming out of each expander’s 4 terminals to the 4 strip segments. But that would draw well over 15A at times. Seems like I can avoid that threshold issue If I power strip segments directly from power supply, and then have ground and data going from output expander to my segments (as referenced here). Then I’ll put fuses on the power lines from the power supply. Does this setup look good to you? Thanks Wizard!