Lenovo 7454 - ThinkPad X200 - Core 2 Duo P8700 Hardware Maintenance Manual page 91

Table 18. Removal steps of PCI Express Mini Card for wireless WAN (continued)
3
When installing: Plug the red cable into the jack labeled MAIN on the card,
and the blue cable into the jack labeled AUX.
83
ThinkPad X200 and X200s