flash drives/jump drive

[Ignazio Palmisano]

Harold Hartley wrote:
> I am wondering if most all the flash drives are backward compatible with 
> the USB 1.x ports even though it says its for USB 2.0 ports.
> There are so many out there, but a friend bought me one that holds 1GB 
> and its for USB 2.0. So that is why I ask the question above.
> 
> I know my computer has a USB 1.x ...
> 
> Harold
> 
> 
I tried a one gigabyte pen and a 20 gigabyte hard drive (for usb 2.0 AND
1.1) both on old and new ports without problems. Not definitive answer,
but for what I know the main difference for backward compatibility is
that 2.0 ports usually give higher power levels (the hard drive needs
external power on some 1.1 ports, not all of them).
HTH,
Ignazio

-- 
Ignazio Palmisano
Ph.D. Student - palmisano at di.uniba.it, ignazio_io at yahoo.it