A:AnswerYes, it is but i wouldn't recommend it as it isn't like the typical lever-controlled table, rather this one is adjustable through screws on the legs that are honestly kinda wack in my opinion. Mine fell through the legs and got stuck inside so it was a hassle to get em out.
A:AnswerVery stable and heavy. Mine is not on carpet but with the weight I’d have no concerns. Just follow the instructions and tighten screws when you are supposed to
A:AnswerThe cable openings would most likely fit the mount as they are quite large and near the back. The back edge would work fine also as the mouse pad just lays on top so one could simply lay it on the mounts with no interference.