When I am at the end of the house doing some bizarre wireless thing, if the Toughbook wifi does not show I hot-plug a PC wireless instead of trundling to the other end of the house. (to plug it in the router)
SMC EZ Connect802.11 g.
Works from CF-M34 to CF-31A.
That's all I know......O.K. so I looked this up. I am talking PCMCIA above....not express card as below.
Comparison to CardBus
The major benefit of ExpressCard technology over the previous PCMCIA CardBus PC card is a dramatic increase in bandwidth, afforded by the fact that the ExpressCard has a direct connection to the system bus over a PCI Express x1 lane and USB 2.0, whereas CardBus utilizes an interface controller that only interfaces with PCI. The ExpressCard has a maximum throughput of 2.5 Gbit/s through PCI Express and 480 Mbit/s through USB 2.0 dedicated for each slot, versus CardBus's shared 1.06 Gbit/s bandwidth.
In addition, the ExpressCard standard uses lower voltages than the previous CardBus slots (1.5V and 3.3V versus 3.3V and 5.0V).
The ExpressCard FAQ also claims other advantages, including lower cost, better scalability, and better integration with motherboard chipset technology.
The ExpressCard interface is not backwards-compatible with CardBus devices, which presents a problem for those who may purchase a new system only to find that their devices do not work with the new slot design.
Some ExpressCards can work in a PCMCIA adapter. However I ran an ExpressCard 3G module in a PCMCIA adapter for mobile internet on my CF-29. It got so hot that the card fried itself after a few weeks of use. It probably would have been cooler in a native ExpressCard slot.