Max. Cable Extension: The 4 Port HDMI Switcher can reliably distribute a single HDMI source to two synchronized outputs. More outputs can be created by cascading multiple splitters. Ideal for setting up HD video entertainment or informve displays in offices, shopping centers, conference rooms, schools, and training facilities. This HDMI switcher supports all HD formats ,ideal for home theater systems. Input: AC 50HZ,60HZ 100V-240V;Output:DC5V 2A