Epson Control and Connection Box - ELPCB03Control and Connection Box ELPCB03 Teachers can now experience a higher level of control and connectivity in the classroom with the ELPCB03. This wall mounted AV control box perfectly complements Epson's short throw and ultra short throw display solutions. Teachers, and pupils, benefit from greater device connectivity, ease of use and neat cable management. This convenient, wall mounted box boasts a direct source button for 3x HDMI connectivity, split