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. 121-3897
Mfr. Part No.NOOBS_16GB_Retail
BrandSandisk
£7.21
Each
Units
MicroSD 16 GB - Class 10 - NOOBS - -
RS Stock No. 914-5082
Mfr. Part No.LSD32GCBEU633
BrandLexar
£9.55
Each
Units
SDHC 32 GB - Class 10 SLC 633x - -
RS Stock No. 758-2552
Mfr. Part No.TS2GSDC
BrandTranscend
£9.00
Each
Units
SD 2 GB - Class 1 MLC - - -
RS Stock No. 914-5089
Mfr. Part No.LSD16GCBEU633
BrandLexar
£7.84
Each
Units
SDHC 16 GB - Class 10, UHS-1 U1 SLC 633x - -
RS Stock No. 750-4802
Mfr. Part No.44013
BrandVerbatim
£13.71
Each
Units
MicroSDHC 32 GB - Class 10 - - - -
RS Stock No. 901-1289
Mfr. Part No.SDCA10/16GB
BrandKingston
£10.96
Each
Units
MicroSDHC 16 GB - Class 10, UHS-1 U1 SLC - - -
RS Stock No. 758-2556
Mfr. Part No.TS4GSDHC4
BrandTranscend
£8.40
Each
Units
SDHC 4 GB - Class 4 MLC - - -
RS Stock No. 750-4786
Mfr. Part No.44004
BrandVerbatim
£5.00
Each
Units
MicroSDHC 8 GB - Class 4 - - - -
RS Stock No. 914-5199
Mfr. Part No.LSD32GBBEU300
BrandLexar
£9.16
Each
Units
SDHC 32 GB - Class 10 SLC 300x - -
RS Stock No. 111-3178
Mfr. Part No.LSDMI32GBB1EU300A
BrandLexar
£6.89
Each
Units
MicroSDXC 32 GB - Class 10, UHS-1 U1 - 300x - -
RS Stock No. 758-2607
Mfr. Part No.TS8GUSDHC10
BrandTranscend
£7.40
Each
Units
MicroSDHC 8 GB - Class 10 MLC - - -
RS Stock No. 124-9653
Mfr. Part No.TS8GSDHC10M
BrandTranscend
£11.40
Each
Units
SDHC 8 GB Yes Class 10 MLC - -25 → +85°C -
RS Stock No. 758-2571
Mfr. Part No.TS4GSDHC10
BrandTranscend
£7.60
Each
Units
SDHC 4 GB - Class 10 MLC - - -
RS Stock No. 144-8084
Mfr. Part No.DS2A-128I81W1B
BrandInnoDisk
£16.04
Each
Units
SD 128 MB Yes Class 6 SLC - -40 → +85°C -
RS Stock No. 914-5196
Mfr. Part No.LSD16GBBEU300
BrandLexar
£6.89
Each
Units
SDHC 16 GB - Class 10 SLC 300x - -
RS Stock No. 758-2600
Mfr. Part No.TS32GUSDC4
BrandTranscend
£9.60
Each
Units
MicroSDHC 32 GB - Class 4 MLC - - -
RS Stock No. 914-5193
Mfr. Part No.LSD64GBBEU300
BrandLexar
£17.11
Each
Units
SDXC 64 GB - Class 10 SLC 300x - -
RS Stock No. 111-3177
Mfr. Part No.LSDMI16GBB1EU300A
BrandLexar
£5.53
Each
Units
MicroSDHC 16 GB - Class 10, UHS-1 U1 - 300x - -
RS Stock No. 874-3900
Mfr. Part No.RP-SDPC04DE1
BrandPanasonic
£18.46
Each
Units
SD 4 GB - Class 4 MLC P - -
RS Stock No. 123-9683
Mfr. Part No.44033
BrandVerbatim
£18.95
Each
Units
MicroSDHC 32 GB - Class 10, UHS-1 U3 - Pro+ - -
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