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By PURPLELEC | 23 September 2023 | 0 Comments

How to choose a memory card

  There are many types of memory cards on the market. In terms of storage media, they are mainly divided into two categories: flash memory and micro hard drives. The memory cards used randomly in ordinary digital products mainly use flash memory. Flash memory is divided into TF card, CF card, SD card, SM card, MMC card, MS card (memory stick), XD card, etc. according to specifications.
  Class level, an important indicator of memory cards, is also an important symbol of SDHC cards. Different levels of memory cards can meet the needs of different users. Taking the latest SDHC as an example, it is divided into Class 2, Class 4, Class 6, Class 10, and even faster UHS-I class cards. Introduce memory card purchasing tips from many aspects.
  1. Memory card capacity
  The shopping editor recommends that you "live within your means" when purchasing. The bigger the capacity, the better. It just needs to meet your future use. The larger the card's capacity, it will not only affect the reading speed, but also drag down the device processor and accelerate the battery power. consumption, causing invisible losses. When purchasing, you may choose a memory card that is suitable for your device.
  2. Class value
  Class 2: read and write speed 2MB/second; Class 4 read and write speed 4MB/second; Class 6 read and write speed 6MB/second; Class 10 read and write speed 10MB/second; UHS-I/UHS Speed Class 1 finished product writing speed can Up to 80MB/sec, bandwidth up to 104MB/sec. At present, the latest mainstream memory cards are Class 10. If the level is too low, it will affect the user experience of the device.
memory cards
  3. SDHC logo
  Choose an SDHC or SDXC standard, which means a high-capacity SD memory card. SD cards with a capacity of 2GB to 32GB use the FAT32 file system and have the SDHC logo; SD cards with a capacity of 32GB to 2TB have the SDXC logo. Lack of SDHC or SDXC is not recognized by the SD Association and may cause compatibility issues with the device.
  4. Performance and service
  Choose a memory card that is waterproof, shockproof, cold and heat-resistant, and can continue to read and write for a long time to ensure daily use with confidence. The after-sales service is good, and many brands of memory cards now have a lifetime warranty.
  5. Memory card brand
  The production process of parallel-imported brands is rough, the surface is pitted and uneven, and the logo printed with rough fonts looks like water-soaked cards. Insufficient memory, slow reading and writing speed, and easy data loss may occur. Big brands have higher technology and better user experience.

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