No. 1 global leader in flash memory cards (Based on Gartner, Dataquest ID No. G00200684, 05/12/2010). Best for high-megapixel cameras and HD camcorders. Up to 20 MB/s (Up to 20 MB/s transfer speed; write speed lower. Based on SanDisk internal testing; performance may be lower depending upon host device. 1 megabyte (MB) = 1 million bytes) 133x (x = 150 kb/s). Fast performance to capture and transfer photos and video. Class 6. Full HD video (Full HD video [1920x1080x30 fps] & HD video support may vary based upon host device, file size, resolution, compression, bit rate, content, and other factors). More speed to record fast action video. Water proof. Temperature proof. Shock proof. X-ray proof. 1 gigabyte (GB) = 1 billion bytes. Some capacity not available for data storage. FCC compliant. Made in China.