At the 2025 Flash Memory Summit, Silicon Motion unveiled the SM8466—its first PCIe 6.0 SSD controller for enterprise storage. Built on TSMC’s 4nm process, it delivers staggering 28 GB/s sequential read speeds and 7 million random IOPS. This doubles PCIe 5.0 bandwidth, targeting AI, cloud, and hyperscale workloads.

Enterprise-Ready Architecture
The SM8466 supports capacities up to 512TB and next-gen 3D TLC/QLC NAND. It complies with NVMe 2.0+ and OCP NVMe SSD 2.5 standards, ensuring compatibility with modern data centers. Key enterprise features include end-to-end data protection, AES-256 encryption, secure boot, and virtualization support (SR-IOV/MPF).
Why This Matters for Data Centers
PCIe 6.0 addresses critical bottlenecks:
- AI training: Accelerates dataset loading
- Real-time analytics: Reduces latency
- Storage density: Maximizes server efficiency
The controller future-proofs infrastructure as Intel/AMD PCIe 6.0 server platforms launch in 2025–2026.
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Market Position & Availability
The SM8466 competes with Marvell’s Bravera SC6 and Phison’s E26 Max. Prototyping begins late 2025, with mass production for 2026 server refreshes. Consumer PCIe 6.0 SSDs remain 3–4 years away.
Source: ITHome