32GB memory U3 16GB sports camera 128GB tablet 64GB C10 high-speed card 8GB

Reminder: Due to the high volatility of memory cards, customers with large quantities should add them as friends on Wangwang. We will sincerely serve you.
The above are all bare cards. If packaging, card sleeves, silk screen printing, mold making, and copying materials are required, they will be charged separately
Packaging and accessory connections: https://ysjszs.1688.com/page/offerlist_65977097.htm
Our company only sells industry recognized good versions, with a small capacity defect rate of approximately 0.3% and a large capacity defect rate of approximately 0.1%
All products sold are tested by all testing software available on the market. It is recommended to use the authoritative disk software "H2testw" for detection, so that the upgrade card has nowhere to hide and eliminates your worries about product quality.
Memory card is an extremely small flash memory card mainly used in mobile phones, but due to its small size and continuously increasing storage capacity, it is now used in GPS devices, portable music players, and some storage disks. Its volume is 15mm x 11mm x 1mm, almost the size of a finger, and it is currently the smallest flash memory card. It can also be connected to the SD card slot through an SD adapter for use.
*If a 3.0 card reader and 3.0 interface are used, the test data will be even better. The actual speed depends on the device used and the size of the document.
Special Reminder
The actual usage capacity of the 2GB memory card is around 1.85GB, as the computer uses binary production and uses decimal system
If the computer has 1MB=10B, then 1MB=1000KB,
2GB is about 1.83GB, 4GB is about 3.7GB, 8GB is about 7.3GB, and 16GB is about 14.6GB
Class level
Class level is also an important symbol of SD card, which is a quantitative symbol of transfer speed. Different levels of memory cards can meet the needs of different users. Taking SD as an example, it is divided into several levels: Class 2, Class 4, Class 6, and Class 10, and even more powerful UHS-I level cards have emerged today. There is a relationship between Class level and SDHC, for example, an SD memory card must have a capacity of at least 2GB and at least a transfer speed of Class 2 level.
Class 2: Low write speed reaches 2.0MB/s, which can meet the requirements for watching regular MPEG4 and MPEG-2 movies, shooting on SDTV, and digital cameras.
Class 4: With a low write speed of 4.0MB/s, it can smoothly play high-definition television (HDTV), digital camera continuous shooting, and other requirements.
Class 6: Low write speed reaches 6.0MB/s, meeting the requirements for continuous shooting with DSLR cameras and professional equipment use.
Class 10: Low write up to 10.0MB/s for recording and playing full HD TV.
How to identify genuine and fake cards?
At present, there are many counterfeit products on the market, and flash memory such as SD cards/USB drives/TF cards/memory sticks can be upgraded,
Upgrading is to use 1G or 2G (or smaller such as 128M, 256M) capacity to falsely label as 4G
8G, 16GB, 32GB or larger capacity,
The actual capacity is still 1G or 2G, and buyers cannot judge whether to upgrade the product with their naked eyes through a computer.
The current effective method is to use "H2testw" or "MyDiskTest" software for full disk verification
H2testw download link:
http://mydown.yesky.com/soft/utilitie/test/204/442704.shtml
A simple and effective way to check if the card is sufficient is to copy about 14G of data from a 14.9G capacity card
Go in (files, songs, movies), then delete the hardware in the bottom right corner of the computer and unplug the card reader,
Insert the card reader again and copy out the data to see if all the information is normal,
If it is normal to say that the actual capacity has been reached,
If it is upgrading/expanding the memory card, it is only the actual capacity (128/256/512/1G/2G)
The upgraded capacity can be used, but the data copied later is virtual and cannot be extracted or damaged