Yes, according to NewEgg, it requires one 6 pin PCEi power connector (http://www.newegg.com/Product/Product.aspx?Item=N82E16814121855)
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And Asus' website confirms the same: https://www.asus.com/Graphics-Cards/GTX750TIOC2GD5/specifications/
google query: vga asus gtx750ti-oc-2gd5