Traveling with your computer - 67• Additional printer driver files if you plan to use another printer.• Proof of purchase, in case you need to show it to customs officials.• International Travelers Warranty passport.Special considerationsFollow the same special considerations as when traveling with thecomputer.In addition, these tips are useful when traveling internationally:• When traveling in another country, check that the local AC voltage andthe AC adapter power cord specifications are compatible. If not,purchase a power cord that is compatible with the local AC voltage. Donot use converter kits sold for appliances to power the computer.• If you are using the modem, check if the modem and connector arecompatible with the telecommunications system of the country you aretraveling in.