Compatible to: CSL24U, CSL24UL, CSW24U, CSW24UL, SL3000UL, CSW200UL, HDSW24UL, LA500UL, IHSL24UL, HDSL24UL, SL585U, SL585UL K1D8387-1CC is a UL325 Expansion Board. For use with various LiftMaster Commercial Swing and Slide Gate Operators; manufactured after 2016 This board is backwards compatible for older second generation units, but will require UL325 Entrapment Protection System and Photoelectric Sensors or Edge Sensors. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. K1D8387-1CC is a UL325 Expansion Board. For use with various LiftMaster Commercial Swing and Slide Gate Operators; manufactured after 2016. This board is backwards compatible for older second generation units, but will require UL325 Entrapment Protection System and Photoelectric Sensors or Edge Sensors. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part.