I work with another rental company called RovAir ( http://www.rovair.com ). While we don't work with ATT at the current time, we do offer cards from Verizon and Sprint. Generally speaking I have not seen much difference in terms of performance among different types of cards (USB - Type II/PCMCIA - Express). But by and large the industry is moving towards USB. Myself personally I prefer the Type II/PCMCIA card as it fits right in my computer and is a little more protected than a USB card. Many laptops are now phasing out this technology. But if your computer has this card slot I would not hesitate to rent one. We don't offer any of the Express cards; this technology is being phased out as most devices become USB compliant.
The bigger question is which carrier. We find that Verizon has the more extensive network and has better coverage in rural areas. But in relatively populated areas they both work fine. I would suggest consulting the coverage maps before making a decision.
Hi all maybe you can help me a little. I found a company (www.WifiRents.com)that rents out the mobile broadband cards from ATT and Verizon and I love using them when travelling but can anyone tell me what the difference is in the cards... I always get the usb cards because I know they will work on my laptop but are the other cards like the Type II card or the Express cards better for any reason? just curious because if im missing out on something I want to know for the next time I order.