It is zero rate. The worst experience i had with purchase online. I made order for 1800$ at night and the next morning there was a sale for 15%. I called them and have canceled the order because they refused to apply the discount. I kept calling them for 4 days to get at least an email for cancellation and they kept repeating the same sentence that they are waiting for the vendor. I am stuck with their system which is unprofessional because while waiting for their confirmation the discount will be over.. I dont recommend anyone to buy from their website online.