BlackStork OSD - Firmware USB upgradeUSB key for firmware upgrade for BlackStork OSD. The USB/PC to OSD provides an easy firmware update capability for BlackStork OSD. Update and improve your OSD in seconds.Firmware updates are available during the product production period for free. http://www.avionicsrc.com/firmware.php You will recieve a periodically mail with the new firmware file for updating in seconds your BlackStork OSD .