Latitude e6430 and Dell WWAN 5550

Hello all,

I've recently upgraded my corporate laptop from a Dell Latitude e6420 to the new e6430. In my previous laptop I quite happily used the Dell WWAN 5500 Mobile Broadband card but I'm finding this doesn't appear to be compatible with the e6430. I've Googled to determine an answer but am struggling, the Dell site itself lists the 5560 as an option when building the specification but is the 5550 card so much different?

Regards,

D.