USB 1.0 To USB 2.0?

[orion23]

Hi,

My notebook has 1 USB 1.1 connector only.
I would like to buy an adapter PCMCIA USB card which features USB 2.0 connectors.

Will the new USB's work at 2.0 or 1.1?

TIA!

 

[stevty2889]

If it's a USB 2.0 card, and you have the neccessary OC updates to support USB 2.0, it will work at usb 2.0..windows XP with SP1 or 2, or I think SP4 for win2k is required for USB 2.0. Any particular reason usb 1.1 isn't enough?

 

[WobbleWobble]

Originally posted by: orion23
Hi,

My notebook has 1 USB 1.1 connector only.
I would like to buy an adapter PCMCIA USB card which features USB 2.0 connectors.

Will the new USB's work at 2.0 or 1.1?

TIA!

2.0, provided your OS supports it.

 

[shawn130c]

Isnt usb 2.0 backwards compatable meaning it should work on a usb 1.1 slot just run at slower speed?

 

[orion23]

Thanks guys.

USB 1.1 is extremely slow. There is a huge difference between USB 1.1 and 2.0
I have XP SP2 and I would like to buy 1 of those cards so that I can have a better / faster connection.

Since this is going to be USB 2.0 through the PCMCIA interface, will there be a slow down, or can I expect the usb ports to work at full speed?

TIA!

 

[DaveVandorAmon]

USB 2.0 over PCMCIA should work just fine, since the PCMCIA standard using 32-bit CardBus is the same equvalent as 33mhz PCI local bus, so that will be delivering the theoretical max of 133 MB/s. USB 2.0 spec allows up to 480mbps or 60MB/s. YMMV, you probably will not see those max speeds. Only limitation with PCMCIA USB 2.0 port vs onboard USB 2.0 ports with USB 2.0 controller integrated to the mainboard is using devices that can be bus powered. PCMCIA does not pull enough juice through to power devices. It'll work fine for memory keys and the like, but don't expect to power an external hard disk or optical drive without a power source unless your PCMCIA USB card can be used in externally powered mode.