Key features of the X Series include dual heat sinks for effective temperature management, a space-saving design with a two-story structure and heat pipes, and optimized Thermal Interface Material (TIM) for efficient heat transfer across components. The fan-less heat sink design enhances durability and stability while minimizing power consumption and noise generation, ensuring prolonged cooling performance. Priced competitively, the NN5PRO-1TB1BH and NN5PRO-2TB1BH models are available at $239.99 (1 TB) and $399.99 (2 TB), respectively, offering high-value options for users seeking top-tier SSD solutions.