It arrived neatly packed in one box. I assembled it, installed Antix Linux and the AMD graphics drivers, and it is so fast. I get a frame rate of 60fps even when playing the games that used to slow my old machine right down, and the eight core processor makes multi-tasking so easy. It's so quiet you hardly hear it running. Right now, after being on for three days, the System Temperatures are:
cpu: 28.0C mobo: 27.0C gpu: 32.50C
which is considerably cooler than my old machine. I'm really pleased with this computer.