Note:YourcomputerdoesnotsupporttheContentProtectionforRecordableMedia(CPRM)featurefor
SDcards.
Fordetails,refertotheinstructionsin“UsinganExpressCardoraFlashMediaCard”onpage53.
Bottomview
Figure5.ThinkPadEdgeE420andE520bottomview
1Battery2SIMcardslot
3PCIExpressMiniCardslotforwirelessWAN4Memory-upgradeslot
5Harddiskdrive6PCIExpressMiniCardslotforwirelessLAN/WiMAX
1Battery
Useyourcomputerwithbatterypowerwheneveracpowerisunavailable.
Byinstallinganextendedlifebatteryavailableasanoptionyoucanextendtheoperatingtimeofthe
computer.
YoucanalsousePowerManagertoadjustyourpowersettingasneeded.Fordetails,refertotheinstructions
in“PowerManager”onpage23.
2SIMcardslot
IfyourcomputerhasawirelessWANfeature,itmayrequireaSIM(SubscriberIdenticationModule)cardto
establishawirelessWAN(WideAreaNetwork)connections.Dependingonthecountryofdelivery,theSIM
cardmaybealreadyinstalledintheSIMcardslot.
Chapter1.ProductOverview9