QLC (Quad-Level Cell)

QLC (Quad-Level Cell) is a type of NAND flash memory that stores four bits of data in each memory cell. This allows QLC to hold more data in a smaller space compared to earlier technologies like TLC (Triple-Level Cell), which only stores three bits. While QLC offers high storage capacity and is cost-effective for large data storage needs, it generally has slower write speeds and lower endurance compared to its predecessors. This makes QLC suitable for applications like consumer SSDs and archival storage, where high capacity is prioritized over extreme performance.