Atlona 10-input Switcher / Scan Converter with Single HDMI Output with 3D Support The Atlona AT-HD600 is a 10-input switcher with a single HDMI output. The Atlona switcher is able to switch and convert any of the 2 x composite, 2 x S-Video, 2 x component video, 1 x VGA and 3 x HDMI to a single HDMI output. The HD600 can be controlled through IR remote or RS232