Security surveillance systems usually require large amounts of data storage in order to record video and other surveillance data. Therefore, it is important to choose the appropriate storage medium.
The following factors need to be considered when choosing between an SD card and an eMMC:
Capacity: eMMCs typically offer greater capacity, while SD cards have a wider range of capacity options.
Speed: eMMCs are faster than SD cards, so they may be better for applications that need to read and write data quickly.
Durability: SD cards are more fragile than eMMCs, so eMMCs may be more reliable for applications that require long-term use.
Cost: SD cards are usually cheaper than eMMC, which makes them more attractive in some applications.
Based on these considerations, eMMC is preferred in security and surveillance applications because it offers greater capacity and faster speeds, and it's also more reliable and less susceptible to damage, even during extended periods of operation.