Up for sell one mini PCI 4G LTE card for toughbooks.
SIERRA WIRELESS MC7700 WWAN 4G LTE. driver can be download from Panasonic website. (not capable with Verizon)
pulled from Panasonic Toughbook CF-31, CF-53, not tested. should work with newer Toughbook models.
Easy to install, 30 days warranty.