An HDMI Splitter is used to take s single source (such as blueRay Player, Cable box or satellite box) and distribute that HDMI signal to multiple TVs. A splitter should not be confused with an HDMI SWITCH (Whis is used to connect multipleHDMI source devices to a single. A HDMI splitter is used to take many HDMI outputs by giving one HDMI input signal to it.