Are those two WWAN slots on the Latitude E6440?

Help me to determine my WWAN slot type wwan slot On the upside, if you do have a B-key slot, you don't have to limit yourself by SSDs and WWAN cards – for instance, here's an open-source USB hot party slot @nando4, Yes, on the system specification the thinkpad t480s has x2 lane speed on WWAN slot, but when i install SSD on in, it is only

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