cjan :
The monitor says it has a 15 pin D-sub DVI-D connector.
15 pin D-sub is a different connector than Dvi-d . so that should read connectorS . out of them , u can connect the first one , d-sub which is also known as vga connector , with your pc , which surely would have one which u used for the older crt monitor . get a vga cable if none came with the monitor .