Rearview
Figure8.ThinkPadX1CarbonandThinkPadX1Yogarearview
1Fanlouvers
2MicroSDcardslot
3Micro-SIM-cardslot
1Fanlouvers
Thefanlouversandinternalfanenableairtocirculateinthecomputertoensurepropercooling,especially
thecoolingofthemicroprocessor.
Note:Toensureproperairflow,donotplaceanyobstaclesinfrontofthefanlouvers.
2MicroSDcardslot
Yourcomputerisequippedwithamicrosecuredigital(SD)cardreader.InsertamicroSDcardintothe
microSDcardslotfordataaccessorstorage.
Note:EnsurethatyouuseamicroSDcard.Donouseastandard-sizedSDcard.Thestandard-sizedSD
cardisnotcompatible.
ForinstructionsonhowtousethemicroSDcard,see“UsingthemicroSDcard”onpage48.
3Micro-SIM-cardslot
Ifyourcomputersupportsthewirelesswideareanetwork(WAN)feature,amicroSubscriberIdentification
Module(SIM)cardmightberequiredtoestablishwireless-WANconnections.Dependingonthecountryor
regionofdelivery,amicroSIMcardmightbealreadyinstalledinthemicro-SIM-cardslot.
Note:EnsurethatyouuseamicroSIMcard.Donouseastandard-sizedSIMcard.Thestandard-sized
SIMcardisnotcompatible.
ToinstallorreplacethemicroSIMcard,see“InstallingorreplacingthemicroSIMcard”onpage120.
8ThinkPadX1CarbonandThinkPadX1YogaUserGuide