Sandisk Micro SD 4096Mb Memory Card microSD 4GB 4 GB
£3.39
- MicroSDHC 4GB Card
- Supports SDHC, Class 2 compatible host devices
- High-performance transfer speeds: up to 15MB/sec
- Included Memory Adapter: MicroSDHC to SD adapter
- warranty - 5 years
Incompatiblity with SD card readers - You may need a micromate USB sdhc adapter , or equivalent generic adapter, if you want to transfer to and from a PC and the memory at high speed (I get around 4Mbps writing and around 10Mbps reading sustained speeds with a generic SDHC compatible USB adapter). Many SD card readers, even the USB 2.0 ones I have that are less than a year old, do not support SDHC. The SD card adapter supplied is only a physical form factor adapter it has no electronic communications adaptation capability.Without a micromate USB adapter, or equivalent, expect problems of locking up explorer and an unrecognised card in MS Windows computer-browser when the SDHC-card in the supplied SD-form-factor adapter is inserted into an SD-card-reader that does not support SDHC. (I found simply removing the card from an incompatible reader unlocked computer browser from hanging, on MS Vista). Otherwise connect a compatible phone, sound recorder, camera etc with the SDHC card installed in the device, via USB, or other communications transfer hardware, for useable, if potentially slow, transfers. I get read speeds of around 200kbps using this transfer method.Rating Would have been 5 stars if this information was published and easy to find.