Preheat oven to 350°F.

Combine cake mix and 1/2 cup butter in a bowl until well blended.  Firmly press evenly into ungreased 13 x 9-inch pan.  Bake for 12 to 14 minutes or until set.

Combine eggs, corn syrup, 1/4 cup butter and vanilla in a large bowl with a wire whisk until blended.  Stir in pecans, chips and coconut.  Pour over crust.

Bake for 30 to 35 minutes or until set.  Cool on wire rack; then refrigerate for at least 1 hour.  Cut into bars; store in refrigerator.

Recipe Tip:  If using a glass or ceramic pan, bake at 325°F.