First, the subject is different.
TF card: TF card, also known as microSD, is a very small flash memory card, which was invented and founded by SanDisk Company.
SD card: SD card is the abbreviation of SecureDigitalCard, which is literally translated as "SecureDigitalCard" in Chinese. It is a brand-new memory card product jointly developed by Panasonic Corporation of Japan, Toshiba Corporation and SANDISK Corporation of the United States. It is a new generation storage device based on semiconductor flash memory.
Second, the technology is different.
TF card: adopts the latest NAND MLC technology and controller technology of Sandisk.
SD card: The embedded digital copyright protection scheme is based on the recordable media content protection standard (CPRM) proposed by 4C. Its core is to use passwords.
Third, the application is different.
TF card: It is mainly used in mobile phones, but due to its small size, it is gradually used in GPS devices, portable music players and some flash drives with the increase of knowledge capacity.
SD card: SD memory card is a completely open system, which is widely used in portable devices, such as MP3, digital cameras, digital cameras, e-books and AV devices.
Extended data:
Precautions for purchasing memory cards:
1, Compatibility: Just like DIY computer hardware, memory cards also have compatibility problems. There are also some incompatible problems between different brands of memory cards and digital cameras. Mainly manifested in the card reading time is too long, the access speed is longer, or there is a crash. So when buying a memory card, be sure to remember the memory card model corresponding to the machine. It's safer to try the machine yourself.
2. Packaging and appearance workmanship: Pay attention to whether the printing quality of the packaging is clear and whether there are anti-counterfeiting labels. If you can check the authenticity with 800, you'd better call. Finally, look at the overall manufacturing situation of the card, whether the edge of the card has deformation, bulge, crack, burr and symmetrical cutting angle.
3. Warranty time: Be sure to ask the warranty time of the purchased memory card when purchasing the machine, and it is also necessary to ask for the relevant invoice receipt.
Baidu encyclopedia -SD card
Baidu encyclopedia -TF card