Thread: USB1.1 and 2.0 incompatibility

I understand that it is possible (although not always the case), that pugugging a USB1.1 device into a hub along with 2.0 devices may cause all the devices to run at 1.1 speed.

To resolve this problem I plan on running 2 USB hubs up front.

My question though is how far down the chain does this problem persist.

Senario 1. I run a single usb2.0 hub from the PC to the front. I then connect two more USB hubs to the 1st hub, 1 running 1.1 devices the other 2.0 devices. Does the problem persist back through the central hub (I.e. this doesnt solve the problem).

Senario 2. I run two hubs from the PC to the front. Does this solve the problem.

I'd rather just run the one cable as in scenario 1 even though it requires an additional hub.

Kicker... At the moment I am using an older Dell laptop (this will change but I'd like all the cabling to remain the same) This laptop does not have USB2.0 ports, instead I am running a PCMCIA card with 4 USB 2.0 ports. Could the problem persist all the way back to the PCMCIA card? Meaning that running any 1.1 devices will slow everything down?
(Even here scenario 2 would work as I could run the 1.1 devices off a hub connected to the laptops native 1.1 port.

Thanks...Paul