The quality of the flash chip in a USB drive significantly influences its price. High-quality chips, such as those from reputable manufacturers like Flash brand: Sandisk, HY, Mciro, etc, are typically more expensive due to their superior performance, reliability, and longer lifespan . These chips are produced from high-grade wafers and undergo strict quality IC control,such like SMI, ensuring stable data storage and faster read/write speeds. In contrast, lower-quality chips, often referred to as "black chips" or recycled components, may have lower capacity, higher error rates, and shorter lifespans, making them less reliable and more prone to failure . Additionally, the type of flash (SLC, MLC, or TLC) and the controller used also affect the price, as higher-end controllers enhance data management and reduce wear . Therefore, the price of a USB drive is largely determined by the quality and specifications of its internal components.

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