What's the difference between these DVI outputs?

[LeeHarris]

My GPU (HD 7850, this GPU specifically: http://www.powercolor.com/global/products_features.asp?id=448#Specification) has these two DVI ports on it in addition to a HDMI and two mini display ports, although I cannot distinguish between the two DVI ports myself. The box and the website say that the card comes with a DL-DVI-I and an SL-DVI-D output. However to my eyes they both look like DL-DVI-I outputs or am I missing something?

Here is a gyazo picture link of the two ports on my card (sorry about the camera flash). The only difference I see between the two is that the top output has VGA engraved in the metal next to it.

http://gyazo.com/d88318d2832cc64720a800761686fbf1

Here is another picture I found what supposedly shows what the two outputs should look like.

According to the picture I should have the bottom-left output and the top-right output, but am I right in saying that in fact there are two DL-DVI-I outputs rather than a single DL-DVI-I and one SL-DVI-D?

Any help would be great, thanks guys.

 

[rolli59]

Both look like Dual Link DVI-I to me unless they are missing the contacts in the 4 analog ports around the flat and the center ports. It is possible that they have all the ports without contacts for cable compatibility