User's Manual

ThinkPadX220TabletandX220iT abletbottomview
Figure8.Bottomview
1Battery
2SIMcardslot
3Dockingconnector4Memory-upgradeslot
1Battery
Useyourcomputerwithbatterypowerwheneveracpowerisunavailable.
Fordetails,refertotheinstructionsin“PowerManageronpage38
.
2SIMcardslot
IfyourcomputerhasawirelessWANfeature,itmayrequireaSIM(SubscriberIdenticationModule)cardto
establishawirelessWAN(WideAreaNetwork)connections.Dependingonthecountryofdelivery,theSIM
cardmaybealreadyinstalledintheSIMcardslot.
3Dockingconnector
WithaThinkPadX220Ultrabase,youcanextendthecomputercapabilitieswhenyouareinyourofceor
home.
4Memory-upgradeslot
Youcanincreasetheamountofmemoryinyourcomputerbyinstallingamemorymoduleinthememory
bay.Memorymodulesareavailableasoptions.
Rearview
Thissectionintroducesrearviewofyourcomputer.
Chapter1.ProductOverview17