SDHC vs micro SDXCWhen purchasing and SD card, you will notice it is either an SDHC or micro SDXC card. The key difference between the two cards is the amount of data they store. SDHC stores a maximum of 32GB of data whereas the SDXC can store 64GB and above. Most lower-end handsets do not support the SDXC types, so it is important you first check your device’s compatibility before purchasing one.
Determine the ‘Class’ on a microSD cardThis factor is very important. They come in different classes -that is - class 2, 4, 6 and 10. These numbers may seem nothing to many of us but they reflect the minimum rates at which they sustain the data transfers. A Class 4 microSD card reads & writes data at 4MB/s, while a Class 6 card does that at 10MB/S. In short, the number reflects the read and write speed of the microSD card. There also some high quality cards that run up to 95MB/S.
Meaning of UHSMicroSD cards are UHS-3 or UHS-1-compatible. In theory, the UHS microSD cards can meet a transfer speed of 312MB/s. However, you’re realistically gong to attain the minimum speed of 10MB/s for the UHS-1 and 30MB/s for the UHS-3 no smartphone support the UHS standard. This means that the UHS will only make a little difference to your SD card speed.
Choosing a better microSD cardPicking one card over another can improve performance on your device. If you store photos and applications on your card a higher-speed card saves photos faster and improves the data transfer speed when moving files between handsets. Opening applications on your microSD tend to be faster for higher-speed cards. If you have any problem regarding your SD card, click here for possible fixes.
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