Designed to store all kind of data on the most compact devices, this microSDHC flash memory card posses in a very small package an excellent value compared to all the other proprietary, less extended, memory cards. Also you only need to insert this memory inside the included SDHC adapter to use it on a very extended range of devices. Features: Type: MicroSDHC Flash Memory Card Speed Rating: Class 4 Capacity: 8GB Max. Transfer rates: Reading: 21 MB/s (140x) Writing: 5 MB/s (34x) Accessories: SDHC standard size adapter It’s of great importance the client verify previous to any memory purchase the official device documentation state its compatible with the new SDHC standard and the desired capacity. Part of the capacity is used to format and perform other functions and thus is not available for data storage. 1 megabyte (MB) = 1 million bytes, 1 gigabyte (GB) = 1.000 billion bytes, 1GB = 0.93Gib/953.67MiB Write and Read Speeds as stated by manufacturer, specifics may be obtained contacting directly their technical department. Reflected speeds may not be attainable under some circumstances, and depend on hardware, software and settings used. x=150KB/sec