SD Cards

SD cards, short for secure digital cards, are compact memory cards commonly used for storage in portable devices.


What does an SD card do?


Like most portable devices, a memory card allows you to carry your files and media with you. They are removable cards which store data from a device such as a digital camera or smartphone. Some PCs and laptops come with an SD card slot too, or you can purchase a card adapter separately. The compact nature of the card makes it easy to integrate into portable devices.


What size are SD cards?


SD cards come in three different physical sizes, standard, mini and micro. The size you choose depends on which device you plan to use and what card it can be used with.


Each SD memory card will have a capacity size too, given in GB or MB. This refers to the amount of data that can be stored on the card. Larger capacities will be more expensive so it is best to choose an SD memory card that meets your storage needs.


Why would you need an SD card?


Most devices today come with built-in memory storage to a certain capacity. However, it is very easy to use their internal memory up, and that is where SD cards are useful. They add-on to your personal device that can greatly boost the amount of media you can store at one time. You will not have to worry about having to delete important photos from your camera, or music from your smartphone. You can keep adding more to your library.


What is SDUC/SDXC/SDHC?


  • SDUC stands for Secure Digital Ultra Capacity. This supports memory cards up to 128TB.

  • SDXC stands for Secure Digital eXtended Capacity. SDXC cards support up to 2TB.

  • SDHC stands for Secure Digital High Capacity. SDHC card refers to SD cards which have a higher storage capacity, usually over 4GB.

What is Speed Class?


Speed class is a standard developed by the SD association. Speed Class, UH Speed Class and Video Speed Class are given to indicate the minimum writing speed of a memory card. They include:


  • Speed Class - 2, 4, 6, 10

  • UH Speed Class - UHS-I, UHS-3

  • Video Speed Class - V6, V10, V30, V60, V90

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Description Price Card Format Capacity Industrial Speed Class Rating Nand Type Series Temperature Range X Speed Rating
RS Stock No. 136-0148
Mfr. Part No.NOOBS_32GB_Retail
SGD14.54
Each
units
MicroSD 32 GB - Class 10 - NOOBS - -
RS Stock No. 758-2587
Mfr. Part No.TS32GSDHC10
BrandTranscend
SGD28.31
Each
units
SDHC 32 GB - Class 10 MLC - - -
RS Stock No. 180-5790
Mfr. Part No.INMSD2GNAV2
SGD12.76
Each
units
MicroSD 2 GB - - - - 0 → +60°C -
RS Stock No. 914-5105
Mfr. Part No.LSD64GCRBEU2000R
BrandLexar
SGD284.74
Each
units
SDXC 64 GB - Class 10, UHS-2 U3 - 2000x - -
RS Stock No. 187-4668
Mfr. Part No.AF2GUDI-ZAFXM
BrandATP
SGD64.46
Each
units
MicroSD 2 GB Yes Class 10, UHS-1 U1 SLC - -40 → +85°C -
RS Stock No. 186-4642
Mfr. Part No.TS64GSDC500S
BrandTranscend
SGD72.30
Each
units
SDHC, SDXC 64 GB - Class 10, U3, V0 MLC - -25 → +85°C -
RS Stock No. 180-1647
Mfr. Part No.THN-N203N0320E4
BrandToshiba
SGD19.55
Each
units
SD 32 GB - Class 10, UHS-1 U1 - N203 -25 → +85°C -
RS Stock No. 186-4641
Mfr. Part No.TS8GSDC500S
BrandTranscend
SGD18.06
Each
units
SDHC, SDXC 8 GB - Class 10, UHS-I U1, UHS-I U3, V30 MLC - -25 → +85°C -
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