DapuStor unveiled a 512TB E2 NVMe SSD drive, demonstrating extreme storage density for AI datacenter use.

At FMS 2026, the industry landscape presents two notable shifts compared to last year. First, the show is notably more upbeat, with numerous NAND and DRAM vendors experiencing unprecedented business booms. Second, there's a marked reversal of the long-standing trend toward ever-increasing SSD capacities—exemplified by DapuStor's 512TB E2 NVMe SSD.

The drive uses the E2 form factor and is part of DapuStor's high-capacity family. DapuStor has previously delivered substantial capacities, including the Xlenstor2 X2900P 800GB SLC SSD and the Haishen5 SSD H5100 30.72TB drives. High-capacity QLC NAND remains in high demand, driven by the need to store training data for modern models, manage cache reads in inference, store video and audio, and support other capacity-intensive applications. As a result, DapuStor has a family of NVMe SSDs on display at FMS 2026.

For compact form factors like E3.L and E1.L, capacity is capped at 256TB (245.76TB). The standout is the E2 SSD: a 512TB model that markedly exceeds the 256TB capacities of higher-end E3.S or U.2 drives. The EDSFF E2 design accommodates more NAND placements than E3.L drives through added depth and width—typically a few millimeters in each dimension.

The practical advantages are compelling. A server configured with 36 E2 drive bays delivers 16PB of capacity in a single system. While 2U servers with E3.L SSDs might offer greater density, the E2 form factor's real advantage is attaching substantially more capacity to a single CPU or dual-CPU configuration. This reduces system costs by requiring fewer memory modules, chassis, motherboards, and supporting components. For power-constrained deployments, it also means lower overall power consumption with fewer CPUs, NICs, and memory modules.

Recent market dynamics, however, have reshaped economics. As NAND pricing has risen, system cost is now heavily dictated by NAND, making smaller-capacity drives economically attractive. Conversely, E2's higher density can enable lower-capacity SSDs using lower-density NAND, potentially delivering more cost-effective solutions.

The achievement is historically notable. A single SSD reaching 512TB once would have defined an enterprise storage array. The evolution from SSDs that traded capacity for performance against mechanical drives to densities that now pack half a petabyte into a single device underscores the profound transformation of storage architecture.

Pricing remains undisclosed, though given current NAND costs, the drive is expected to command a substantial premium.