Q:Does the 8 port kvm support audio over hdmi?
A: Yes, as long as your display also supports audio.
Q:Does this support wireless mouse and keyboards?
A:Yes, TESmart KVM Switch support wireless mouse and keyboards, at the same time, we add extra USB2.0 port on it for any USB2.0 devices.
Q:Is this a seamless switcher? Does the picture go black or tear when switching? How long from stable pic on one input to stable pic on another?
A:There will be a delay based on the speed of your monitor. Older monitors tend to have a longer delay, whereas new monitors are usually back up within 2 seconds.