The simplest way to transfer money is to have it wired from your home bank to your account in Des Moines. As soon as you have opened your new account, you may contact your family or home bank to arrange the transfer.
Your home bank may also allow you to purchase a bank draft in US dollars. The best places to inquire are banks that have branches in the US. Foreign currency bank drafts may also be used, but processing will take longer. If you choose this option, be sure to allow more time in order to meet fee payment deadlines.