As above, not a problem. Just don't be surprised if you get pulled aside for explosive screening or a little closer inspection. I have a bright orange pelican case full of micro computers, networking cables, a switch, hard disks and other gadgets that I carry on some work trips. Sometimes I get passed right through security, sometimes they want to take a look. It all depends on the person running the x-ray.

But that said, the worst inspection I ever had with it was in Macao, where they insisted on pulling EVERYTHING out of the case, including the foam inserts, but finally were satisfied and let me pass right on through. 90% of the time though, no hassle at all.

Also, they watch for your reaction. I think it likely helps that I'm so used to it by now I just sigh and say "Oh yeah, I get this all the time."