if you intend to use your monitor to view hdcp(high-bandwidth digital content protection)
1080p content(like blu-ray) then the use of dvi, hdmi or display port is required. the 15 pin
d-sub vga connector does not support this. Also if this is an issue for you make sure that
the monitor itself that you pick supports hdcp besides just having the right connectors.
some displays have the connector but lack the proper support to display hdcp content.