Micro SD Cards

Micro SD cards, sometimes referred to as microSD, are memory cards used to store data in small devices. SD stands for secure digital and micro comes from its size. The microSD card is the smallest of the SD memory card family.

What are micro SD cards used for?

These memory cards are popular in portable devices, such as smartphones. Their compact size makes them ideal for smaller devices.

If you would like to use your microSD memory card in a standard SD slot, you can purchase adapters separately. SD adapters enable you to connect your microSD card to SD or USB slots, for example, in PCs and laptops.

What is capacity?

Memory card capacity represents the amount of data that can be stored on the card. This is given in MB or GB, for example 4GB. Larger capacity memory cards tend to be more expensive. Therefore you should choose a card which is suitable for the amount of data you wish to store.

What is SDUC/SDXC/SDHC?

  • microSDUC stands for Secure Digital Ultra Capacity. This supports memory cards up to 128TB.
  • microSDXC stands for Secure Digital eXtended Capacity. SDXC cards support up to 2TB.
  • microSDHC 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 Adapter Included Speed Class Rating Nand Type Temperature Range
RS Stock No. 695-7334
Mfr. Part No.SDC4/8GB
BrandKingston
HK$55.88
Each
units
MicroSDHC 8 GB - - Class 4 SLC -
RS Stock No. 877-5553
Mfr. Part No.44083
BrandVerbatim
HK$98.38
Each
units
MicroSDHC 32 GB - - Class 10, UHS-1 U1 - -
RS Stock No. 187-1717
Mfr. Part No.TS16GUSDHC10V
BrandTranscend
HK$171.15
Each
units
- 16 GB - - Class 10 MLC -25 → +85°C
RS Stock No. 124-9650
Mfr. Part No.TS8GUSD220I
BrandTranscend
HK$343.58
Each
units
MicroSDHC 8 GB Yes - Class 10, UHS-1 U1 SuperMLC -40 → +85°C
RS Stock No. 174-7344
Mfr. Part No.SDSQUAR-400G-GN6MA
BrandSandisk
HK$3,210.47
Each
units
MicroSDXC 400 GB - - Class 10, UHS-1 U1 - -25 → +85°C
RS Stock No. 750-4786
Mfr. Part No.44004
BrandVerbatim
HK$78.58
Each
units
MicroSDHC 8 GB - - Class 4 - -
RS Stock No. 187-1637
Mfr. Part No.TS32GUSD300S
BrandTranscend
HK$95.40
Each
units
- 32 GB - - Class 10 TLC -25 → +85°C
RS Stock No. 187-4667
Mfr. Part No.AF1GUDI-ZAEXM
BrandATP
HK$178.62
Each
units
MicroSD 1 GB Yes - Class 10, UHS-1 U1 SLC -40 +85°C
RS Stock No. 183-9389
Mfr. Part No.AF32GUD3-WAAXX
BrandATP
HK$441.50
Each
units
MicroSDHC 32 GB Yes - Class 10, UHS-1 U1 MLC -25 +85°C
RS Stock No. 187-1719
Mfr. Part No.TS32GUSDHC10V
BrandTranscend
HK$337.47
Each
units
- 32 GB - - Class 10 MLC -25 → +85°C
RS Stock No. 123-1040
Mfr. Part No.32GB MicroSD + Adaptor
BrandSandisk
HK$137.483
Each (In a Box of 120)
units
MicroSDHC 32 GB - - Class 4 - -
RS Stock No. 124-9648
Mfr. Part No.TS64GUSDC10I
BrandTranscend
HK$1,401.61
Each
units
MicroSDXC 64 GB Yes - Class 10 MLC -40 → +85°C
RS Stock No. 183-9390
Mfr. Part No.AF4GUD3A-WAAXX
BrandATP
HK$142.07
Each
units
MicroSDHC 4 GB Yes - Class 10, UHS-1 U1 SLC -25 +85°C
RS Stock No. 758-2596
Mfr. Part No.TS8GUSDC4
BrandTranscend
HK$82.71
Each
units
MicroSDHC 8 GB - - Class 4 MLC -
RS Stock No. 146-5586
Mfr. Part No.AF16GUD3-WAAIX
BrandATP
HK$294.02
Each
units
MicroSDHC 16 GB Yes - Class 10, UHS-1 U1 MLC -40 → +85°C
RS Stock No. 174-4626
Mfr. Part No.SDCR/32GB
BrandKingston
HK$203.92
Each
units
MicroSDHC 32 GB - - Class 10, UHS-1 U3 - -25 → +85°C
RS Stock No. 126-1737
Mfr. Part No.LSDMI128BBEU633A
BrandLexar
HK$364.02
Each
units
MicroSDXC 128 GB Yes - Class 10, UHS-1 U1 - -
RS Stock No. 123-9685
Mfr. Part No.47041
BrandVerbatim
HK$168.51
Each
units
MicroSDHC 32 GB - - Class 10, UHS-1 U3 - -
RS Stock No. 865-9098
Mfr. Part No.LSDMI128CBEU1000R
BrandLexar
HK$1,190.56
Each
units
MicroSDHC 128 GB - - Class 10 SLC -
RS Stock No. 180-5790
Mfr. Part No.INMSD2GNAV2
HK$70.46
Each
units
MicroSD 2 GB - - - - 0 +60°C
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