I use the Asrock H 61 Pro BTC or the H81 Pro BTC. They are very robust. It is conveninet to use. You can have up to 6 cards.
They also appear to both have been out of production for some time - definitely the H61 has been, pretty sure on the H81.
They are still be on sale in my country, they are for the old 1155 and and 1150 CPU. It is just the clearing of the stocks.