5 Excellent value card.Ganelon | 01/04/2010 | See all Ganelon's reviews (1)I bought this to use in my HTC Desire. For those wondering, the part number of the card I received is P-MICROSD16GBHC-BX.The card I received has a little 2 on the card itself. I assume this means it's classifed as Class 2, though there are no speed ratings on the rest of the packaging. Did a quick test for the purposes of this review. 1Gb of mp3s transferred across to the phone in 3.5 minutes. The card therefore writes at 4.8Mb/s. This would make it a class 4 to 5 speed in practice.