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
New
RS Stock No. 189-7900
Mfr. Part No.LSD256B667
BrandLexar
SGD176.96
Each
units
SDXC 256 GB - Class 10, UHS I (U3) - - +0 → +70°C -
RS Stock No. 124-9655
Mfr. Part No.TS32GSDHC10M
BrandTranscend
SGD61.33
Each
units
SDHC 32 GB Yes Class 10 MLC - -25 → +85°C -
RS Stock No. 124-9654
Mfr. Part No.TS16GSDHC10M
BrandTranscend
SGD32.44
Each
units
SDHC 16 GB Yes Class 10 MLC - -25 → +85°C -
RS Stock No. 180-5820
Mfr. Part No.INISD32GPSLC
SGD164.08
Each
units
SD 32 GB Yes UHS-1 SLC - -40 → +85°C -
RS Stock No. 180-5807
Mfr. Part No.INSDH4G10V1
SGD13.40
Each
units
SDHC 4 GB - Class 10 - - 0 → +60°C 200x
RS Stock No. 172-9937
Mfr. Part No.SDS/128GB
BrandKingston
SGD73.55
Each
units
- 128 GB - - - - -25 → +85°C -
RS Stock No. 188-4765
Mfr. Part No.47022
BrandVerbatim
SGD50.83
Each
units
SDXC 64 GB - Class 3 - - - -
RS Stock No. 124-9653
Mfr. Part No.TS8GSDHC10M
BrandTranscend
SGD24.96
Each
units
SDHC 8 GB Yes Class 10 MLC - -25 → +85°C -
RS Stock No. 144-8086
Mfr. Part No.DS2A-512I81W1B
BrandInnoDisk
SGD43.54
Each
units
SD 512 MB Yes Class 6 SLC - -40 → +85°C -
RS Stock No. 187-4803
Mfr. Part No.MU-PB500B/EU
BrandSamsung
SGD618.38
Each
units
- 500 GB - - - - 0 → +60°C -
RS Stock No. 187-4807
Mfr. Part No.MZ-V7S1T0BW
BrandSamsung
SGD624.66
Each
units
- 1 TB - - MLC - 0 → +70°C -
RS Stock No. 180-5812
Mfr. Part No.INSDH8G4V2
SGD12.68
Each
units
SDHC 8 GB - Class 4 - - 0 → +60°C -
New
RS Stock No. 189-7903
Mfr. Part No.LSD256CB1667
BrandLexar
SGD299.00
Each
units
SDXC 256 GB - Class 10, UHS II (U3) - - +0 → +70°C -
RS Stock No. 172-9936
Mfr. Part No.SDS/64GB
BrandKingston
SGD39.84
Each
units
- 64 GB - - - - -25 +85°C -
RS Stock No. 187-4806
Mfr. Part No.MZ-76Q4T0BW
BrandSamsung
SGD1,369.79
Each
units
- 4 TB - - MLC - 0 → +70°C -
RS Stock No. 180-5819
Mfr. Part No.INSDH32G10-9560-4KV2
SGD28.60
Each
units
SDHC 32 GB - Class 10, UHS-1 U3 - - 0 → +70°C -
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