4 Input 1 Output HDMI Switch, 4K Ultra HD HDMI Switcher Support 3D, 1080P, 4Kx2k@60Hz (IR Remote Control)

How many amps does this need. Says 5v via an adapter can someone tell me the amps the transformer provides?

Will it work with Roku stick ?

I'm seeing some conflicting reports on the auto switch feature. i was hoping to use this with a ps4, ps3 and an android smart box i use for emulation?

Does remote control use infrared or another type of connectivity to HDMI switcher