I've used and owned many field monitors over the years ... While there is no SDI onboard, for most users looking at this I think HDMI is perfectly fine and it's nice to see Neewer include all ...

CHAMPAIGNE, Ill. —Cobalt Digital will feature IPMX-compliant products, including its SAPPHIRE mini converters and PACIFIC ...

If you are running video around your home theater, you probably use HDMI. If you are running it in a professional studio, however, you are probably using SDI, Serial Digital Interface.