Network-connected PCs (called “Teacher PCs”) have been installed in 91 centrally administered classrooms in the Main Campus and 71 classrooms in the Centennial Campus. They support commonly used software and readily accessible Internet services for instructional presentations to facilitate teaching in the classrooms.
A teacher can also bring his/her laptop PC for class teaching. A VGA video cable is provided in these classrooms for laptop-projector connection.
See FAQ Q4 about other video interface on https://www.its.hku.hk/faq/tl/les/classrooms.