5x Genuine Samsung Electronics 16GB High Speed microSDHC Memory Card (MB-MSAGB/AM)(Bulk Packaging) HD Video Recording Class 6 For Iphone Samsung LG HTC and devices what uses micro SD Up to 24MB/s transfer speeds This kit in includes 5x Samsung Electronics 16GB High Sequential read: ~24 MB/s Sequantial write: ~17.5 MB/s 4K Random read: ~7.7 MB/s 4k Random write: ~2.8 MB/s