ATEN VS-162 User Manual page 11

Cascading
To provide even more audio/video display, additional units can
cascaded from the VS-162 / VS-164's Media Out ports.
Simply use additional male to male DVI and audio cables to
connect a Media Out port on the parent splitter to the Media In
port of the child splitter.
Note: Splitters can be cascaded to a maximum of three levels.
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2005-03-02