The Dell card is a rebranded Orinoco that is called a "Truemobile 1150", I think. Turns out that my Enterasys is also a rebranded Orinoco card. It works with their drivers. I am having trouble making it work consistently with my 2400c. If I fully seat the card in the bottom slot it will not work. If I offset it a hair it gets recognized right away. The Enterasys drivers will not work well this way. Orinoco's wake right up and see my network. If I put the card in the top slot it hangs the 2400c. It also will not wake properly from sleep with the Enterasys card inserted. The 2400c hangs. Any other advice? Plus: Best WIRED Ethernet card for the 2400c? I need one of those too...:) Scott