USB1 and 2 both had the same issues with devices dropping in and out. Try plugging in 20 USB HDDs and watch. I remember when USB was first announced there were

USB1 and 2 both had the same issues with devices dropping in and out. Try plugging in 20 USB HDDs and watch. I remember when USB was first announced there were videos from trade shows of people plugging in 100 devices. But the reality was that the manufacturers of USB chipsets clearly took shortcuts here and there, rightly never expecting people to actually stack 17 USB hubs in some sort of tentacle nightmare of cabling, and so it never quite worked properly at the extremes.