Most of the time an average card available on the market will not be that fast. Theoretically, you could end up with an SD card that writes and reads just as fast as an SSD. Some high-capacity drives opt for this as it offers much cheaper storage for archiving, but the block endurance rating of 1,000 write cycles can be punishing on computers using the drive for caching or swap/page file. Quad-level cell (QLC) – stores four bits, as you may have guessed.Although block endurance is significantly lower than in the other variants described above (3,000 write cycles on average), it’s more than enough for typical home use.

This is actually the most common type of cell found on SSDs. Triple-level cell (TLC) – is a cell that stores three bits.Blocks can be written to 40,000 times on average. This type of storage grouping is not common but is significantly cheaper than SLC technology. Multi-level cell (MLC) – stores two or more bits, but most often stores two bits.Each block can be written to 100,000 times, making it the most durable option. In normal consumer products, it’s only used for caching on SSDs and some high-end SD cards (though some SSDs like NVMe drives tend to use RAM chips for cache). This is by far the most expensive option.

Single-layer cell (SLC) – stores one bit per cell.

This is important because differences in NAND flash almost entirely depend on how they are grouped into cells:

For the SD format to work it just needs to be capable of communicating with the devices that read it. Additionally, although there are different types of NAND flash memory, each with its own disadvantages and advantages, you could theoretically move NAND transistors from an SSD (such as the 3D TLC NAND found in the Samsung SSD 850 EVO) into an SD card.

Security camera ssf files