Samsung has released the PM9E1 – the smallest 4‑TB SSD built on PCIe 5.0.

Samsung unveils the world’s first 4 TB PCIe 5.0 SSD – the PM9E1

Samsung has announced the release of its new solid‑state drive (SSD) PM9E1, which is the industry’s first M.2 2242‑form‑factor device to support PCIe 5.0 and offer a 4 TB capacity. The drive is aimed at compact computing systems, such as Nvidia’s DGX Spark desktop supercomputer built around the GB10 chip for artificial‑intelligence (AI) workloads.

Why PM9E1 Matters for AI
AI accelerators enable complex algorithms to run efficiently, but their full potential can only be realized with specialized storage. Samsung positions the PM9E1 as exactly that: it delivers high capacity and rapid data access—essential foundations for cutting‑edge AI applications.

Technical Specifications

*The PM9E1 is twice as fast and 45 % more power‑efficient than Samsung’s previous generation.*

Construction

- Dual‑side board with eighth‑generation V‑NAND chips, each 1 Tbit in capacity.
- Samsung Presto controller featuring an integrated DRAM cache.

The controller is fabricated on Samsung Foundry’s 5‑nm process and its firmware is tuned for the DGX Spark OS, Nvidia CUDA, and general AI workloads. It supports the SPDM 1.2 security protocol, providing device authentication, firmware integrity checks, and secure communication channels with certificates.

Market

Samsung’s PM‑SSD line targets OEM manufacturers: new drives are primarily supplied for building ready‑to‑go PCs and laptops. Retail sales are therefore unlikely, though unofficial units have already begun appearing on the market.

In short: Samsung has introduced the PM9E1 – the first PCIe 5.0 4 TB SSD in a compact M.2 2242 form factor, engineered specifically for AI systems and offering exceptional speed, power efficiency, and robust security.