This is a used / pre-loved item, we do our best to uphold the quality of all our used equipment.DAC-45 Up/Down Cross Converter including Rackmount. Supports VGA/HDMI/SDI to 4K HDMI/3G-SDI multi-format up/down/cross conversion. Support 3G-SDI Level A/B. Reference Input (Black Burst and Tri-Level Sync. ). Built-in DE-Interlacer and Interlacer (I/P Conversion). RCA Audio Embedding.