Memory card is a storage tool, which is usually used in electronic devices, such as mobile phones, cameras, music players and so on.

This is a memory card, not a memory stick on the computer.

Brand? Well-known brands include SanDisk, Kingston, Weigang and so on, and of course there are many shanzhai. Some profiteers sell products that look like 4G 8G, but in fact they are only 256M, 5 12M. When you buy it, you should read the packaging clearly. Generally, exquisite packaging can guarantee the quality. Memory cards are not expensive now, so don't buy one at a time, even if it is a regular package.