Model Number: SF-M128 Key Specifications/Special Features: SF-M series offers 260 MB/s read speed and 100 MB/s write speed for maximum transfer rate with UHS-II host devicesWith class 10 and UHS speed class 3 (U3) you will be ready to capture 4K ultra HD Read speed of up to 260 MB/s maximizes work flow efficiency while write speed of up to 100 MB/s supports advanced camera functions such as continuous burst shooting with UHS-II host cameras Shipping Information: FOB Port: Hong Kong SAR