WJ-MX20 digital A/V mixer provides an extremely clear picture thanks
to a 13.5MHz sampling frequency, 460 lines of horizontal resolution
(720 pixels) and a S/N ratio of 50dB. It makes complex video editing
easy with advanced digital functions including chromakey, scene
grabber, on-screen display (OSD) settings and an external editing
control input with GPI and RS-422 serial controls.