This variety of k-cup is $17.99 for 48 k-cups. If you do the math, that's $0.37 per k-cup.
Amazon is a bit wordier with how they named this product. They call it "Calypso Coconut for K-Cup Keurig 2.0 Brewers, Margaritaville Coffee Medium Roast Single Serve Coffee Pods 0.33 Ounce (Pack of 48)".
Some additional details about this product:
Need to know more? You can read more about this product on Amazon.
Oh, and here's a bunch of pictures if you've never seen k-cup pods before: