This document discusses using a hybrid NAND configuration in SSDs to push down prices while maintaining performance and reliability. It begins by reviewing SSD performance metrics and how price has been the key driver of market expansion. It then introduces the concept of a hybrid NAND SSD that combines multiple NAND types like SLC, MLC, and TLC. This flexible design can address different market needs by optimizing for performance, endurance, or price depending on the application. Testing results show hybrid NAND SSDs can achieve SLC-like speeds at an MLC-like price point. Overall, a smart controller that dynamically manages data placement across NAND types allows hybrid SSDs to expand the market by creating new affordable segments without trading