In the past year, two new categories of flash storage products have emerged: Ultra-fast flash systems and high-density flash systems. Ultra-fast flash systems target applications that require guaranteed ultra-low latency and high throughput. High-density flash systems provide large volumes of capacity and performance. In this white paper, Chris Evans, Director and Co-Founder of the IT consultancy Langton Blue Ltd, explains the evolution of flash technology, the architectures beneath these new flash systems, and use cases for each. He also gives us a glimpse of what may very well be the next big breakthrough in flash technology.