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. 180-5811
Mfr. Part No.INSDH16G10-80U1
SGD12.60
Each
units
SDHC 16 GB - Class 10, UHS-1 U1 - - 0 → +70°C 1920x
RS Stock No. 195-8335
Mfr. Part No.SDS2/32GB
BrandKingston
SGD20.38
Each
units
SD 32 GB - Class 10, UHS-I - - -25 → +85°C -
RS Stock No. 187-1629
Mfr. Part No.TS128GSDC300S
BrandTranscend
SGD51.58
Each
units
SDXC 128 GB - Class 10 TLC - -25 → +85°C -
RS Stock No. 144-8027
Mfr. Part No.DESDC-A28Y81BW3SC
BrandInnoDisk
SGD374.42
Each
units
SDHC 128 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. 186-4640
Mfr. Part No.TS64GSDC700S
BrandTranscend
SGD166.88
Each
units
SDHC, SDXC 64 GB - Class 10, UHS-II U3, V90 TLC - -25 → +85°C -
RS Stock No. 180-5815
Mfr. Part No.INIMSD4GPSLC
SGD36.64
Each
units
MicroSDHC 4 GB Yes UHS-1 SLC - -40 → +85°C -
RS Stock No. 203-3155
Mfr. Part No.6SL3054-4AG00-2AA0
BrandSiemens
SGD159.59
Each
units
SD 512 MB Yes - - 6SL - -
RS Stock No. 180-5894
Mfr. Part No.INSDX256G-100/90V30
SGD149.33
Each
units
SDXC 128 GB - Class 10, UHS-1 U3 - - -25 → +70°C -
New
RS Stock No. 206-9187
Mfr. Part No.AF32GSD4A-BBBXM
BrandATP
SGD115.22
Each
units
SDHC 32 GB Yes Class 10, U3, UHS-I - S700Sc -25 ? +85°C -
RS Stock No. 183-9362
Mfr. Part No.DS2A-128I81C1B
BrandInnoDisk
SGD33.48
Each
units
SD 128 MB Yes Class 6 SLC - 0 → +70°C -
RS Stock No. 187-1615
Mfr. Part No.TS1GSDC
BrandTranscend
SGD21.38
Each
units
SD 1 GB Yes - MLC - -25 → +85°C -
RS Stock No. 180-5890
Mfr. Part No.INSDH32G-100V10
SGD15.91
Each
units
SDHC 32 GB - Class 10, UHS-1 U1 - - -25 → +70°C -
RS Stock No. 144-8086
Mfr. Part No.DS2A-512I81W1B
BrandInnoDisk
SGD43.95
Each
units
SD 512 MB Yes Class 6 SLC - -40 → +85°C -
RS Stock No. 203-5411
Mfr. Part No.MLP
BrandKingston
SGD25.53
Each
units
SD - - - - - - -
RS Stock No. 123-9679
Mfr. Part No.44025
BrandVerbatim
SGD49.10
Each
units
SDXC 128 GB No Class 10, UHS-1 U1 - Premium - -
RS Stock No. 758-2571
Mfr. Part No.TS4GSDHC10
BrandTranscend
SGD17.68
Each
units
SDHC 4 GB - Class 10 MLC - - -
RS Stock No. 195-8337
Mfr. Part No.SDS2/128GB
BrandKingston
SGD63.16
Each
units
SDXC 128 GB - Class 10, UHS-I - - -25 → +85°C -
RS Stock No. 874-3897
Mfr. Part No.RP-SDPC16DE1
BrandPanasonic
SGD99.23
Each
units
SDHC 16 GB - Class 4 MLC P - -
RS Stock No. 173-9498
Mfr. Part No.TS8GSDHC100I
BrandTranscend
SGD210.03
Each
units
SD 8 GB Yes Class 10 SLC - -40 → +85°C -