This is a very sturdy stand capable of supporting most keyboards. It is more than sturdy enough for the synth I have on it at the moment. I wouldn't have any trouble putting a Roland 88 key on it.
I would have rated this item 5 stars except the cam mechanism for the height adjustment doesn't have a positive detent position, so it is unknown whether the cam lever is locked in place. A dark stage is not a great place to rely upon uncertain locks.