factory wholesale tf card upgrade expansion memory card 8g memory card 32g64g expansion 1tb memory card export

100 pieces or less will be shipped with a neutral logo, customizing is available for orders of 100 pieces or more.

At present, many expansion cards are available on the market.

Expansion means taking 1G or 2G (or 128M, 256M) capacity to expand to 4G, 8G, 16G, 32G, etc.

The actual capacity is still 1G or 2G, and buyers cannot tell whether it has been expanded through a computer.

You need to use software for testing!

A simple way to test if the amount is sufficient is to copy approximately 14GB of data onto a card with a capacity of 14.9GB.

Insert a file, a song, or a movie into the computer, then remove the USB flash drive from the computer.

If it can be read, it has reached the actual capacity.

The expanded capacity is usable, but the data copied in later is damaged and cannot be read!

Shangge Intelligence solemnly promises: all memory cards sold are real full capacity, we refuse to sell expanded capacity cards!!

It is recommended to use the disk software H2testw to detect, so that the expanded card (upgrade card) reveals its true nature!

 Test the memory card for sufficient capacity?

Method One:

Use H2testw for testing.

Method Two:

A simpler method, such as testing an 8GB card, can store over 7GB of music or video. If all files can be read normally, it means the card is sufficient. If it's a expanded card, only the files stored at the beginning can be read (specifically, it depends on how much it was expanded). The files at the end are damaged and cannot be read.

Reminder: Due to the large fluctuations in chip prices, the quotation is subject to the current day's quotation.

TF card (small card), different from SD card (large card), TF card is about 1/4 the size of SD card, and is the current popular and compact memory card. It is suitable for devices such as mobile phones, dashcams, car navigation systems, MP3 players, learning machines, cameras, surveillance cameras, etc. TF cards have the advantages of traditional SD cards, and can be converted into SD cards with SD adapter cards, and are compatible with devices that use SD cards. They comply with SD specifications.

Product Grade Standards:

C4=Class 4=Write speed over 4M per second;

C6=Class6=Write speed over 6M per second;

C10=Class10=Write 10M per second or more;

U1=Write more than 10M per second;

U3=Write speed: 22-30M/s or more.

The product's label indicates the amount of memory it is equipped with, rather than the actual usable storage capacity.

 * The storage capacity of 1MB is calculated as 1,048,576 bytes. A portion of the storage capacity is used as a management area, so the available storage capacity is as described above.

TF card size: 15mm(L) × 11mm(W) × 1mm(T)

Weight: About 0.41g

Interface Type: TF Storage Card Standard Specification (8-pin)

Working Voltage: 2.7～3.3V

Working temperature: -25°～85°

Save temperature: -20～65°

Humidity Preservation: 30～80%RH (No Condensation)