n 2025, artificial intelligence (AI) has moved beyond early-stage experimentation and initial rollout, entering a phase of broad application and large-scale industrial deployment. Whether it is the training of ultra-large-scale models or low-latency inference in business applications, AI’s usage scenarios and data volumes are growing explosively.

After nearly two years of price declines, the global NAND flash market is finally showing signs of recovery. According to the latest report from industry research firm TrendForce, NAND Flash contract prices are expected to rise by 5% to 10% in the fourth quarter of 2025

The most fundamental difference between external HDDs and external SSDs lies in their internal data storage methods, which determine almost all their characteristics. We can understand this with a simple analogy: an external HDD is like an old-fashioned vinyl record player, while an external SSD is like a large, high-speed USB flash drive.

NAND flash is an electronic medium used to store data, and its core feature is non-volatility. This means that even when power is completely lost, the data can still be preserved for a long time. This is very different from the computer’s RAM, which clears all data once power is cut.