Rod> Instead of telling us only that this is the slowest key to the world, tell us rather how many minutes you spend such a 3 GB file over. It would give us a relatively objective assessment of his speed / slowness.
(By specifying eventually if your computer or another was being "multitasker" other things (multiple viewing movie downloads + + + surf pages open browsers for a while, and so on) for the transfer of data this key.