SD memory cards and their smaller micro SD equivalents are needed to store data in smartphones, tablets, computers, as well as digital cameras, cameras or car navigation. They are small cards that allow you to expand the memory of electronic devices. Furthermore, they allow us to transfer data between individual devices that support SD cards. They differ in many parameters, among which is the one that is most important for the potential user, i.e. memory. It determines how much data we will be able to store on the card. However, it is worth to pay attention to other technical parameters, on which the quality of work and the possibility of using the card depends. This is the speed class, but also the mentioned physical size. Fewer and fewer devices have an input for a regular SD card, most support micro SD cards. They sometimes perform the function of operating memory, but they are more known to us as extra storage space extending the standard, built-in memory.
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MicroSD / SD cards
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Memory card M1AA Goodram microSD 16GB 100MB/s UHS-I class 10 with adapter
Popular format of micro SD/SDHC card, which is used in smartphones, tablets, cameras. Product of class 10 with UHS-I interface from company Goodram. Speed of the read : up...
Index: KAP-02123
Index: KAP-02123
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Memory card Goodram M1AA microSD 64GB 100MB / s UHS-I class 10 with adapter
Popular format of memory micro SD/SDHC card which is used in smartphones, tablets, cameras. Product of class 10 with the UHS-I interface, from Goodram. Read speed: up to...
Index: KAP-02362
Index: KAP-02362
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Memory card Goodram M1AA microSD 32GB 100MB/s UHS-I class 10 with adapter
Popular format micro SD/SDHC, which is used in smartphones, tablets, cameras. Product of class 10 with UHS-I interface from company Goodram. S peed of read: up to...
Index: KAP-02361
Index: KAP-02361
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Memory card justPi microSD 32GB 100 MB/sec class 10 + Raspberry Pi OS
Micro SD/SDHC memory card with the latest version of the Raspberry Pi OS installed, compatible with Raspberry Pi minicomputers. Class 10 product with UHS-I interface, justPi...
Index: RPI-14696
Index: RPI-14696
Memory card Goodram M1AA microSD 256GB 100MB/s UHS-I class 10 with adapter
The class 10 microSD memory card with UHS-I interface, characterized by fast data transfer, has a capacity of 256 GB . The set also includes an adapter that allows you...
Index: GDR-24112
Index: GDR-24112
Goodram All in One memory card microSD 16GB class 10 + adapter + reader OTG
Practical and functional set from the company Goodram consisting of: memory cards micro SD/SDHC, class 10 adapter and USB reader and OTG reader . Read speed: up to...
Index: KAP-06947
Index: KAP-06947
Memory card Goodram IR-M2AA microSD 128GB 170MB/s UHS-I class U3 with adapter
MicroSD memory card from Goodram with a capacity of 128 GB , has a fast UHS interface, read speed up to 170 MB/s and write speed up to 120 MB/s . Video V30 speed class...
Index: GDR-20230
Index: GDR-20230
Memory card Goodram IR-M2AA microSD 64GB 170MB/s UHS-I class U3 with adapter
64GB microSD memory card with read speeds up to 170MB/s and write speeds up to 120MB/s . It has a high-speed UHS interface . Velocity class Video V30 allows you to...
Index: GDR-20229
Index: GDR-20229
Memory card Goodram IR-M2AA microSD 256GB 170MB/s UHS-I class U3 with adapter
MicroSD memory card from Goodram with a capacity of 256 GB , has a fast UHS interface, read speed up to 170 MB/s and write speed up to 120 MB/s . Video V30 speed...
Index: GDR-20231
Index: GDR-20231
Memory card Goodram IR-M3AA microSD 64GB 100MB/s UHS-I class U3 with adapter
The micro SD memory card with a fast UHS 1 interface allows for maximum use of the advantages of modern devices. The IRDM series product guarantees free data flow. It...
Index: GDR-18115
Index: GDR-18115
Memory card Goodram IR-M3AA microSD 128GB 100MB/s UHS-I class U3 with adapter
Micro SD memory card from Goodram. Fast UHS 1 interface allows you to maximize the benefits of modern devices. It achieves read speeds up to 100 MB/sec and write speeds...
Index: GDR-18116
Index: GDR-18116
Memory card SanDisk Ultra 653x microSD 32GB 120MB / s UHS-I class 10, A1 with adapter
Popular format of memory card micro SD/SDHC card which is used in smartphones, tablets, cameras. Product of class 10, class A1 allows you to install apps, it has an...
Index: BAL-09959
Index: BAL-09959
Memory card Kioxia Exceria G2 microSD 32GB 100MB/s UHS-I class U3 V30 with adapter
The Exceria G2 microSD memory card has a capacity of 32 GB . It has a fast UHS-I interface, which allows you to make the most of the advantages of modern devices. It...
Index: GDR-25408
Index: GDR-25408
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Memory card SanDisk microSDXC 128 GB Extreme 190MB/s UHS-I U3 A2 class with adapter
Popular microSDXC format, used in smartphones, tablets, cameras. Product of U3 class with UHS-I interface, by SanDisk. Speed of reading: up to 190 MB / s, writing: up to 90 MB...
Index: BAL-15351
Index: BAL-15351
Memory card SanDisk Extreme 667x microSD 32GB 100MB / s UHS-I class 10 with adapter
Popular format of micro SD/SDHC memory card which is used in smartphones, tablets, cameras. Product of class 10 with UHS-I interface, from SanDisk. Read speed: up to 100...
Index: KAP-09333
Index: KAP-09333
Memory card SanDisk Ultra microSD 32GB 100MB/s UHS-I class 10
Popular format of memory card micro SD/SDHC card which is used in smartphones, tablets, cameras. Product of class 10 with the UHS-I interface, from SanDisk. Read speed: up to...
Index: BAL-09956
Index: BAL-09956
Goodram M1A4 All in One memory card microSD 32GB 100MB/s class 10 + adapter + reader OTG
Practical and functional set from the company Goodram consisting of: memory cards micro SD/SDHC class 10, adapter and USB reader and OTG. Read speed: up to 100MB/sec, save...
Index: KAP-06946
Index: KAP-06946
SenseCAP M1 SD Card Replacement Kit - Seeedstudio 114992729
A set containing a microSD card with the system image uploaded to the LoRaWAN 868 MHz network gateway - SeseCAP M1 Indoor Gateway . In addition to the card, the set also...
Index: SEE-22567
Index: SEE-22567
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Goodram All in One M1A4 - microSD 64GB memory card 100 MB/s class 10 + adapter + OTG reader
Practical and functional set of Goodram company, consisting of: micro SD/SDHC memory card class 10, adapter and USB and OTG reader. Read speed: up to 100 MB/s, write speed:...
Index: KAP-06948
Index: KAP-06948
SanDisk Extreme microSD 64GB 160MB/s UHS-I class 10 with adapter
Popular micro SD/SDHC format which is used in smartphones, tablets, cameras. Product of class U3 with UHS-I inteface, from SanDisk. Read speed: up to 160MB/sec, record...
Index: KAP-08540
Index: KAP-08540
Memory card SanDisk Ultra 533x microSD 64GB 100MB / s UHS-I class 10
Popular format of memory card micro SD/SDHC card which is used in smartphones, tablets, cameras. Product of class 10 with the UHS-I interface, from SanDisk. Read speed: up to...
Index: BAL-09957
Index: BAL-09957
Memory card SanDisk Ultra microSD 64GB 140MB / s UHS-I class 10, A1 with adapter
Popular format of memory card micro SD/SDHC/SDXC card which is used in smartphones, tablets, cameras. Product of class 10, class A1 allows you to install apps, it has an...
Index: BAL-09960
Index: BAL-09960
The memory card Kingston Canvas Select Plus microSDHC 32GB 100 MB/sec, UHS-I class 10 with adapter
A micro SD/SDHC format card designed for use as a storage medium in electronic devices such as a smartphone, tablet or camera. Class 10 product with UHS-I interface ....
Index: BAL-16204
Index: BAL-16204
The memory card Kingston Canvas Select Plus microSDXC 64 GB: 100 MB/s, UHS-I class 10 with adapter
High-performance micro SD/SDXC memory card, used in modern smartphones, cameras or tablets. It offers a read speed up to 100 MB/sec . Class 10 product with UHS-I...
Index: BAL-16205
Index: BAL-16205
See also
Memory card speed class
The parameter worth paying attention to when choosing an SD card for your needs is its speed class . For example, if you are a professional DSLR photographer and shoot in high-resolution RAW format, a card with the highest speed rating will be the most appropriate choice, allowing for the shortest possible recording time between shots.
Type of memory cards - writing and reading speed
An SD card with the highest speed class will also work well when recording high-resolution videos and saving them directly. However, if you need a memory card for a phone or portable music player, the card's speed class is a much less important parameter. The higher the writing speed and reading speed of the MicroSD card, the greater the amount of data processed per second of operation of the memory medium.
MicroSD memory cards - reading speed matters
MicroSD memory cards are manufactured in four speed classes - 10, 6, 4 and 2. Class 10 is the highest speed class and SD cards in this category are recommended for recording videos in full HD resolution. Class 2, on the other hand, is the lowest speed class and is sufficient for recording standard definition videos. However, Class 4 and 6 MicroSD memory cards will be a good choice if you record HD videos. If you record in 4K quality, then a class 1 or 3 UHS card will work great. The writing and reading speed (speed class) is expressed in MB/s, i.e. the amount of data processed per second.
Selection of an SD card for the construction of the device
Mass-produced SD cards are available in three housing sizes. A standard SD card has dimensions of 32.0x24.0x2.1mm, weighs only 2.0g and is distinguished by a characteristic bevel in the upper right corner of the housing.
Card type - additional information
The miniSD card has smaller dimensions of 21.5x20.0x1.4mm, weighs only 0.8g, but currently it is the least used type of SD card, suitable mainly for older mobile phones and has been replaced by a microSD card with dimensions of 15.0x11. 0x1.0 and weighing only a quarter of a gram.
This type of card is especially popular among tablet and smartphone users. The physical size of the card must match the dimensions of the card slot in the device. If you want to insert a microSD card into a device that has a slot for a standard "large" SD card, you will need a special adapter.
Possibility of storing data on SD cards
Just like USB flash drives, hard drives, SSD drives and other data carriers, SD cards are also characterized by capacity, i.e. their ability to store data. SD cards differ in capacity standards. Among them, there is SDSC - covering capacities from 1MB to 2GB. Later, the SDHC standard was created, which includes cards with capacities from 2GB to 32GB, and the newest one - SDXC, which covers card capacities from 32GB to even 2TB.
Card type adapted to the type of mobile devices
In small mobile devices, cards with capacities of 16GB, 32GB and 64GB are most often chosen to expand the built-in memory. Among the above-mentioned devices, the SDHC standard prevails in most devices available on the domestic and foreign markets.
MicroSD cards - what else is worth knowing about them?
Before choosing an SD card, check whether the parameters of your device allow it to work in terms of speed class, dimensions and capacity of the memory card. The lack of moving parts makes the accessories described have a long service life. In addition, selected MicroSD cards are resistant to extreme temperatures. They should be stored in a safe place because they could be damaged, e.g. by falling from a height.
MicroSD memory card - various variants
Example capacities of memory cards:
- 8 GB microSD card - ideal for storing documents, several films or music files
- 16 GB microSD memory card - universal size, which can accommodate a large amount of data and smaller backup copies
- 32 GB microSD card - this is a large capacity, but it will not allow you, for example, to save all your data from your computer
- 64 GB microSD memory card - capacity of the smallest drives available in a computer, you can store a large amount of data on it
- 128 GB microSD memory card - capacity of large computer drives
microSD / SD memory cards - FAQ
At home, you can try to recover data from a damaged microSD memory card using special software. If this fails, it is worth using the services of a specialized company with professional data recovery tools.
The parameters of compatible phone memory cards are provided by the device manufacturer. You should pay attention to the type of media (microSD, microSDHC, microSDXC), data reading and writing speed (given in MB and number of operations per second) and file saving format (different in iOS and Android).
In many cases, the problem with reading the card is due to it being dirty. It is worth removing the media, gently cleaning the contacts with spirit and, after drying, placing the card back in place, making sure it is in the correct position.