The first EOS mirrorless model to feature a built-in Ethernet port , the EOS R3 has the capability for high-speed wired LAN file transfer . Designed for professional use , the 1000BASE-T wired LAN supports FTP , FTPS , SFTP and authentication LAN to achieve stable and secure transfer of large , high resolution RAW or video files . With additional support of Wi-Fi Protected Access 2 ( WPA2 ) and authenticated LAN ( IEEE 802.1X ), the EOS R3 offers added security and compliance with international security standards required by press , public organisations and large-scale events .