These two photos showcase the insides of the TabletKiosk G840XT (like the Getac E100). The top photo shows two very nicely placed mini-PCI express slots, i.e. the one on the left houses the Wi-Fi chip and the one on the right houses 3G.
The second photo shows the same motherboard but when the factory does NOT ship 3G they decide not to supply the second mini-PCI express slot which is allocated to the 3G card, and replaces it with the PCMCIA slot. OUCH!
What I decided was to rip out the Wi-Fi, install the 3G, flash the BIOS (to wake the mini-PCI express slot) and then take a power drill and drill the case (much to the dislike of the manufacturer I’m sure) and attach an external antenna to the unit!. Turns out after all is said and done we’re getting 3x the signal strength the factory gets from 3G and a unit which connects every time. Would I recommend this? Not unless you’re a trained professional and have money to burn! If you tick both boxes…go crazy!
External antenna I drilled and mounted in place