Seems like the same. I am getting an z77 extreme motherboard, so I am hoping they are both compatible.
This first one has a review that mentions it working perfectly.
http://www.newegg.com/Product/Product.aspx?Item=20-231-428&SortField=0&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=-1&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Keywords=a77&Page=1#scrollFullInfo
Now this second one is $6 cheaper ($38), but I am not sure if it will work with my z77.
http://www.newegg.com/Product/Product.aspx?Item=20-231-314&SortField=0&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=-1&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Page=3#scrollFullInfo
This first one has a review that mentions it working perfectly.
http://www.newegg.com/Product/Product.aspx?Item=20-231-428&SortField=0&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=-1&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Keywords=a77&Page=1#scrollFullInfo
Now this second one is $6 cheaper ($38), but I am not sure if it will work with my z77.
http://www.newegg.com/Product/Product.aspx?Item=20-231-314&SortField=0&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=-1&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Page=3#scrollFullInfo