Vlad Rose :
That's weird. According to reviews on it, they state it doesn't:
http://www.overclockers.com/asus-strix-gtx750ti-oc-edition-review/
**edit**
Whateverworks_19 had the wrong card selected. This is the actual requirements for the card:
http://www.asus.com/Graphics_Cards/STRIXGTX750TIOC2GD5/specifications/
and no it doesn't need a 6 pin adapter
**edit**
Yes! Good observation, Sir!
I indeed took the wrong card. There are several versions of the 750ti from Asus. I looked at the "normal" card, the one you asked for was the STRIX. My mistake, however Mr.@Vlad Rose noticed it, so we are all good.
Thanks man.
(By the way, I took the liberty to choose your answer as the best one, as it answers the original question. I doubt OP will have any problems with that.)