probably not though. The actual USB engine is part of the chip-set on the mother board in any computer. To move to USB 2 the motherboard must be replaced not a feasible thing for a lappie. A pcmcia adapter like a PCI card for a desktop will still be channeled through the motherboard. But a USB item as feb suggest should still work but not as quick- not that you would notice any particular difference.
True but my comment re the motherboard still applies It is not either/or it is both together SP1 is the software requirement the motherboard chip set is the hardware. SP1 [though of course now part of any XP O/S now as is SP2 - not an add on]is the software reqirement in XP. But it wont make a USB1 motherboard a USB 2