Vivitek DW832. Lamp hours: 1459 Hours. The BenQ MX704 Projector is a XGA Conference Room Projector. The internal DLP technology touts higher contrast, less visible pixels and more portability. Connections: 12-Volt Trigger, Audio In: Mini Jack, Audio In: RCA, Audio Out: Mini Jack, Composite: RCA, HDMI (MHL), HDMI 1.4 x 2, Network: RJ-45, RS232: DB-9pin, S-Video, USB, VGA In: Dsub-15pin.