Quad aces, for example, is a hand that consists of the ace of spades, ace of clubs, ace of hearts, and ace of diamonds.įour-of-a-kind is not an unbeatable hand, but it’s nearly always the winning hand. Four-of-a-kind refers to four cards of one rank, which means one of each suit. One of the best poker hands, four-of-a-kind is also known as quads.