This product is designed to be compliant with rules and regulations in the country it is sold to and therefore is marked as required. These markings signify the countries the device is approved in. Operating the product without regulatory approval is illegal. Any changes or modifications to the product not expressly approved by Teradek could void the user's authority to operate the equipment and its regulatory approvals. Please make sure you use the latest revision of this document which is available at teradek.com.