The Lenovo ThinkSystem DE6400F is an all-NVMe storage controller from Lenovo's DE series (based on NetApp E-Series/SANtricity technology), built in a dense 2U/24-bay form factor. This configuration is populated with 24 x roughly 3.84TB NVMe drives, giving about 92TB of raw flash capacity before RAID overhead. The DE-series targets performance-sensitive block-storage workloads -- HPC, analytics, and latency-sensitive databases -- where its SANtricity-based architecture is tuned for consistent low-latency I/O rather than the richer unified file-services feature set of Lenovo's ONTAP-based DM series. This is enterprise data-centre storage sold as a controller/array unit, intended for rack deployment behind a SAN fabric rather than direct-attached desktop use.