Amazon's "How To" page detailing how to transfer files to the Kindle also confirms this, stating "EPUB eBooks are not supported on Kindle."
Amazon ຂອງ "ວິທີການ" ຫນ້າລາຍລະອຽດວິທີການໂອນໄຟລ໌ກັບ Kindle ຍັງຢືນຢັນນີ້, stating "EPUB eBooks ບໍ່ໄດ້ຮັບການສະຫນັບສະຫນູນໃນ Kindle."