SIM card, also known as smart card or user identification card, is an interface used to insert a SIM card. After inserting the SIM card into the SIM card holder of the phone, users can use the phone for communication and internet access. SD card is a portable data storage device that can store important data such as photos, videos, audio, etc. The SD card holder is an SD card slot. After inserting the SD card into the SD card holder, various data inside the card can be read.
The SIM card holder and SD card holder are slightly similar in appearance, but there are significant differences in practical use.
Usage: Due to the ability of SIM cards to store personal information and data related to network communication, SIM card holders are mainly used for mobile communication devices, such as mobile phones, tablets, etc. SD cards are used to store multimedia data such as images, audio, and video. Therefore, SD card holders are mainly used for digital cameras, music players, game consoles, and other devices.
Interface type: SIM card holders usually use soldered or plug-in interfaces with a small number of pins, usually 6 to 8. SD card holders often use spring slot interfaces with a large number of pins, usually 9 to 14. This is because SD cards need to support more data transmission functions.
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