Nvidia launches BlueField-4 STX storage architecture for agentic AI at GTC 2026

Nvidia unveiled the BlueField-4 STX at GTC 2026, a modular storage architecture aimed at enhancing agentic AI inference by addressing data access bottlenecks. The platform, featuring a new BlueField-4 DPU and ConnectX-9 SuperNIC, aims to optimize GPU utilization during AI operations with extended context windows. STX offers significant performance improvements, including higher throughput, energy efficiency, and ingestion speed compared to traditional CPU-based storage setups. By leveraging RDMA over Spectrum-X Ethernet, STX bypasses the host CPU, enabling direct management of NVMe SSDs and improving data integrity and encryption for KV cache in AI processing. Nvidia's CEO, Jensen Huang, emphasized the need for innovative storage solutions to support the evolving demands of agentic AI systems.