097 - What is SD Flash Card

A Flash Card is a data storage device capable of holding digital photos, music, movie, documents, and other files. Flash cards are used to store files in a wide variety of devices, such as digital cameras, music players, mobile phones, portable game consoles and more.

A flash card is an electronic flash memory data storage device used for storing digital information. Its a removable storage device capable of holding digital photos, movie, music, documents, and other files. These small, removable cards are used to store files in a wide variety of mobile devices. These are commonly used in many electronic devices, including laptops, tablets, phones, game consoles, photo cameras, video players and audio players. Most of these can be recordable, and can retain data without power.

Most popular flash card types: Secure Digital (SD). Compact Flash (CF). Multi Media Card (MMC).

Most flash cards plug into a device or computer through a custom port. Some computers come with ports that allow you to plug in many different types of flash cards. When you connect a flash card to your computer, Windows will automatically recognize it and allow you to transfer files from the card to your computer. Some memory card readers are installed in a computer, while others are portable and can be plugged into a computer through a USB port.

Flash Card Format

Digital memory cards are available in a number of formats. These formats include SD, Premium SD, microSD, SDHC, microSDHC and SDXC. With so many choices, how do you know which one you need? You can figure this out in two ways. First, consult the user manual for the electronic device you have purchased; the manual should list the recommended format. The second place that tells you the type of flash card you need is on or near the slot where you insert the card. Usually, there is a logo letting you know what format is required.

Flash Card Class

Digital memory card class comes down to two basic components, speed and use. Speed Class Rating is the official unit of speed measurement for SD Cards as defined by the SD Association. The SD Association establishes specifications that rate the minimum data transfer in SD and SDHC memory cards and host products. Certain speeds then correlate to the cards’ use; high speed memory cards are a higher class. Generally, manufacturers suggest a card type and class based on the types of files an electronic device uses and/or creates. If the maker of your electronic devices does not give you a recommended class, look below for the types of applications you will be using and choose a card in that class.

Class 2 • Minimum 2MB/sec. Class 4 • Minimum 4MB/sec. Class 6 • Minimum 6MB/sec. Class 10 • Minimum 10MB/sec.

According to Sandisk: UHS-1 SD cards can transfer up to 45MBps, and according to the SD Association, the maximum transfer speed based on the interface bus used is 310MBps.

Flash card capacity: 2GB 4GB 8GB 16GB 32GB 48GB 64GB 128GB 256GB up to 512GB.

Flash cards come in a variety of capacities. We recommend that you purchase the highest capacity you can find at the best price. However, you may do just as well to purchase several smaller cards that equate to the capacity of one higher-capacity card. In general, if you are looking for a higher class of card, you probably need a higher capacity card as well.

Flash card is also known as: storage card or memory card.

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