text: I'm not sure I understand your question but here goes:\n\nYour external USB 2.0 hardrives work fine and fast when plugged directly into your Asus motherboard USB ports but are quite slow when plugged into a USB hub which is plugged into your Asus motherboard?\n\nIt sounds simply like the hub is NOT a USB 2.0 hub.  Does the hub have it's own power supply?  The ones without are generally 1.1 and 2.0 will have it's own.