https://www.facebook.com/share/1CJt6QPmYZ/?mibextid=wwXIfr Zimmers.net lists this is monochrome vga, which converts the vga color to an equivalent grey/white/black gradient so you can see color differentiation represented in shades of grey. If you have a Facebook acct and live near Sweedsboro (near del memorial bridge), this monitor is pretty rare, and would normally have been sold with the Colt PC. There was a period in 87/88 where companies sold greyscale VGA monitors a $100 cheaper alternative to the color equivalent. You still got VGA detail but in shades of grey. In some ways it’s easier on the eyes if all you’re doing is spreadsheets and term papers as a student. I have a ps/2 model 25 with a greyscale vga. Not affiliated with the seller. Bill