Vestax PBS-4 VTK Audio/Video Web Broadcast Mixer Package Kit Audio Specification: 3 LINE IN Stereo RCA, 2 Neutrik Combo Jack (Mono), 1 HDMI IN, 1 USB IN (Loop Back). Output: 1 Master Output Stereo RCA (Control Room), 1/4" Headphone Jack Video Specifications: 4 VIDEO IN (Composite RCA), 1 VGA IN (D-SUB15 pin), 1 HDMI IN, 2 MASTER OUT (Composite/USB), 1 PREVIEW OUT (Composite) Video Resolution: Composite: NTSC/PAL, VGA IN (NTSC) : 1024768 (60Hz), VGA IN (PAL) : 1024768 (50Hz), HDMI IN (NTSC): 720480 (60Hz) 480p, HDMI IN (PAL) : 720576 (50Hz) 576p