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Expand Your Storage Capacity with a 16GB SD Memory Card

Secure Digital memory cards, or SD cards for short, are a type of electronic storage device commonly used in digital cameras, laptops, and other mobile devices. The SD format is officially administered and controlled by the nonprofit SD Card Association, but several different companies sell SD memory cards, including SanDisk, Lexar, Toshiba, and Sony. These cards have 16GB of storage space.

What type of storage medium does an SD card use?

The SD format uses a type of solid-state storage known as flash storage. The flash medium stores information inside of individual electronic cells. It does not use any mechanical moving parts at all. Flash is commonly used in portable devices because it is less susceptible to damage or disruption. It is also adept at recording large video or multimedia files due to its fast speeds. So you can capture vacations, family events, and other important moments in your life without fear of losing the content. The SD format is the most common type of flash memory cards. It is used by most mainstream card readers, including:

  • Desktops
  • Laptops
  • Video game devices
  • Digital multimedia players
  • Digital cameras and camcorders
What is the difference between an SDSC and SDHC card?

SDHC stands for Secure Digital High Capacity whereas SDSC stands for Secure Digital Standard Capacity. The SDHC card format supports capacities up to 32GB, so if you are looking for a 16GB card, it will be listed under the SDHC format. In most other respects, SDHC is similar to SDSC cards. Some older devices released before 2006 may not recognize SDHC cards, or they may require firmware updates before they will recognize SDHC. That includes older Windows operating systems before Windows 7.

What is the data transfer speed of a 16GB card?

Each card has a minimum sequential read and write speed, which is a measurement of the amount of data it can transfer to and from a device at any given time. This speed can vary between cards depending on how they are designed, even if the actual amount of storage space remains the same.The read and write speed should be written somewhere on the card itself or on the packaging.

There are a few different types of classification systems that indicate the performance of the card. The basic classification is called Speed Class, and it adheres to a simple ranking system. Class 2 cards have a speed of 2 MB/s, class 4 cards have a speed of 4 MB/s, etc. Some SDHC cards use a type of interface known as Ultra High Speed bus, which adheres to a different classification system.

U1 class has a speed of 10 MB/s, and U3 has a speed of 30 MB/s. These speed classes correspond roughly to certain video resolutions and frame rates. For example, according to the SD Card Association, the U3 class is suitable for transferring 1080p and 4K video at up to 120 frames per second.

Note that these classes indicate minimum performance, and the manufacturer can design the cards to exceed these speeds. A 16GB card may support any number of speeds usually all the way up to U3.

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