Video in: bnc input ports for 8 bnc cameras, Audio in: input ports for audio enabled cameras, Audio out: output for two audio channels – LOREX Technology NETWORK READY H.264 HIGH PERFORMANCE DIGITAL VIDEO SURVEILLANCE RECORDER LH300 Series User Manual

Page 18: Dvi: port to connect a dvi monitor (not included), Ir: port for the flex-ir extender, Usb port: port for a usb mouse, Ground port, Video in: bnc input ports for 16 bnc cameras, Lorex edge: rear panel, Channel