KINGMAX 16 GB HIGH SPEED WATERPROOF - SDHC Class 10 Ultra High Performance memory card (KM16GSDHC10W, Retail Packaging) Dimension: 32*24*2.1 mm (L*W*H) Voltage: 2.7V~3.6V Complies with SD 2.0 standard 20MB/sec and higher high speed transfer rate Endurance: 5,000 times