Silicon Motion has started building PCIe Gen7 SSD controllers — samples expected in 2027

There’s a quiet race underway in the storage industry, and the finish line is PCIe Gen7. Silicon Motion, one of the biggest names in SSD controllers, says it has already started building one.

The company’s enterprise storage chief Alex Chou told Tom’s Hardware that the PCIe Gen7 controller’s architecture and deployment model are already defined. The target is to have an internal sample ready in the second half of 2027, with mass production following in roughly the same timeframe.

For context, PCIe Gen7 is a leap. It pushes data rates to 128 GT/s — that’s 512 GB/s bidirectional in a x16 configuration, or a full terabyte per second of total bandwidth. The spec is built for AI workloads and 1.6T networking. When consumer-grade PCIe Gen5 SSDs still feel plenty fast to most people, Gen7 sits in a different performance tier entirely — one that enterprise data centers are already hungry for.

Chou’s disclosure comes as Silicon Motion’s enterprise SSD controller business is just starting to ramp. The company’s enterprise products are moving into mass shipments now, with a significant volume increase expected in the second half of 2026. Silicon Motion’s long-term goal is to capture more than 10 percent of the $4 billion enterprise SSD controller market.

There’s also a strategic shift in how storage is being designed. Chou pointed to what the industry calls “Storage Next” — the idea that storage should sit physically closer to GPUs, with lower and more predictable latency. It’s a design philosophy that directly influences how controllers like this PCIe Gen7 part are architected. When memory pools and accelerators are separated across a fabric, every nanosecond of delay matters.

Silicon Motion has been a dominant force in consumer SSD controllers for years. The enterprise push is newer, and the PCIe Gen7 play signals that the company is serious about competing at the high end. If it delivers on the 2027 timeline, it could be one of the first movers in a market that doesn’t really exist yet — but will soon.