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. 124-9658
Mfr. Part No.TS16GSDHC10I
BrandTranscend
SGD45.29
Each
units
SDHC 16 GB Yes Class 10 MLC - -40 → +85°C -
RS Stock No. 188-4766
Mfr. Part No.47021
BrandVerbatim
SGD33.32
Each
units
SDHC 32 GB - Class 3 - - - -
RS Stock No. 183-9366
Mfr. Part No.DS2A-02GI81C1B
BrandInnoDisk
SGD109.50
Each
units
SD 2 GB Yes Class 10 SLC - 0 → +70°C -
RS Stock No. 203-5405
Mfr. Part No.MLPR2/128GB
BrandKingston
SGD311.77
Each
units
SDXC 128 GB No A1, Class 10, U3, UHS-II, V90 3D TLC Canvas React! Plus -25 → 85°C -
RS Stock No. 183-9386
Mfr. Part No.DESDC-32GY81BC3SC
BrandInnoDisk
SGD111.64
Each
units
SDHC 32 GB Yes Class 10 MLC 3ME -20 → +85°C -
RS Stock No. 180-5803
Mfr. Part No.INSDH8G10-80U1
SGD13.48
Each
units
SDHC 8 GB - Class 10, UHS-1 U1 - - 0 → +70°C 1920x
New
RS Stock No. 206-9175
Mfr. Part No.AF16GSD4A-BBBIM
BrandATP
SGD79.22
Each
units
SDHC 16 GB Yes Class 10, U3, UHS-I - S700Pi -40 ? +85°C -
RS Stock No. 195-8338
Mfr. Part No.SDS2/256GB
BrandKingston
SGD107.47
Each
units
SDXC 256 GB - Class 10, UHS-I - - -25 → +85°C -
RS Stock No. 194-7448
Mfr. Part No.AF64GSD4-BBBIM
BrandATP
SGD96.73
Each
units
SDXC 64 GB Yes 10 3D TLC S600Si -40 → +85°C -
RS Stock No. 124-9653
Mfr. Part No.TS8GSDHC10M
BrandTranscend
SGD25.89
Each
units
SDHC 8 GB Yes Class 10 MLC - -25 → +85°C -
RS Stock No. 758-2571
Mfr. Part No.TS4GSDHC10
BrandTranscend
SGD17.68
Each
units
SDHC 4 GB - Class 10 MLC - - -
RS Stock No. 183-9365
Mfr. Part No.DS2A-01GI81C1B
BrandInnoDisk
SGD51.60
Each
units
SD 1 GB Yes Class 10 SLC - 0 → +70°C -
RS Stock No. 187-4801
Mfr. Part No.MU-PB2T0B/EU
BrandSamsung
SGD2,187.41
Each
units
- 2 TB - - - - 0 → +60°C -
RS Stock No. 758-2568
Mfr. Part No.TS16GSDHC4
BrandTranscend
SGD18.49
Each
units
SDHC 16 GB - Class 4 MLC - - -
RS Stock No. 194-7447
Mfr. Part No.AF32GSD4-BBBIM
BrandATP
SGD64.64
Each
units
SD 32 GB Yes 10 3D TLC S600Si -40 → +85°C -