I have a usd card. Which ATM is the best one in terms of exchange rates and  fees?

whichever one is closest to where u are, not much dif  a few kyat and all seem to charge 5,500 to use the machine + whatever ur bank adds on

As of earlier this year the following applies:

 

KBZ ATMs: charge 5000 Kyat per withdrawal

 

CB Bank ATMs: charge 6500 Kyat per withdrawal

Myawady Bank ATMs and a few others: charge 5000 Kyat per withdrawal

 

Exchange rates are probably fairly similar between all of them, don't really know but it's best you do a search on "KBZ Bank Exchange Rates" and you'll find out. Most ATMs allow a maximum of 300,000 Kyat to be withdrawn at any one time, though you can make multiple withdrawals of 300,000 Kyat up to the daily maximum your bank allows. The fee is in addition to this so your statement will say 305,000 or 306,500 withdrawn depending on the bank you use.

 

Be aware that many ATMs run out of cash or are otherwise out of order. More and more are springing up all the time, but it's not uncommon for a new ATM to be out of order for weeks on end, meanwhile you search for another ATM only to encounter the same problem and finally the third or fourth ATM is the one that works. Despite this, I wouldn't worry too much - maybe bring along some foreign cash to exchange to Kyat to get by for the first few days (depending on where you are entering from, by land or air, you could also buy Kyat and bring it with you though the exchange rates are only good near the border; don't bother buying Kyat in Bangkok). Then you can always seek out an ATM inside the country without panicking, while you still have some remaining cash.