Best Buy offers a Set of 3 PNY 16GB SDHC Class 10 Secure Digital High-Capacity Cards, model no. P-SDH16G10-XLR133-EF, for $71.37 with free shipping. (Add three cards to your cart to see this price.) That’s $1.49/GB and the lowest total price we could find in this quantity by $14. Sales tax is added where applicable.