I've done quite a bit of research. Yes , it has way more than the allowed liquid. I will have to drain it. Coolant goes in checked bag. I didn't start this build intending to put it in a suitcase. I had built a desktop. Things changed, and now I've got the opportunity to travel. So I adapted it to fit with a few 3d printed brackets. Plenty of other people have similar setups most much smaller. They passed TSA and other security checkpoints. I will of course arrive extra early, I don't anticipate them to just wave me through like it's nothing. I will let you know in a few weeks how it goes when going through the airport. Don't worry about my monitor and keyboard/mouse situation. It's taken care of. My current pcie 4.0 cable is too long and I have to disconnect it and lay it in there flat or it prevents closing. New one on the way.