Free-standing dynamic advertising is easy with ViewSonicƒ??s EP4220ƒ??an ultra-slim 42″ Full HD digital ePoster LED display. Retail and information messaging is easily broadcast via the displayƒ??s internal media player, or by connecting your own media to the industry-standard HDMI or VGA input connections. ViewSonicƒ??s ePoster display can also be connected to a corporate network by adding a network capable media player. Security is achieved through the locking back cover. Compatible ViewSonic media players are available in both X86 and RISC (Linux) configurations. This display is ideal in highvisibility locations such as retail settings, hotel lobbies, banks and universities