TLC direct write is a method of writing data on SSDs that differs from traditional methods. In traditional methods, data is first written to an SLC Cache to achieve high performance. However, when the SLC Cache is full, performance may drastically drop. TLC direct write eliminates the need for an SLC Cache and directly writes data to the TLC (Triple-Level Cell) NAND. This approach ensures a stable and consistent level of write performance. TLC direct write is widely used in applications that require fast and stable write speeds, such as data collection and high-speed photography. It allows for sustained write performance without performance degradation, meeting the demands of data-intensive tasks like surveillance data recording.