Phison is expanding its lineup of PCIe Gen5 SSD controllers with a new option built for people who want next-generation speed without the added cost and power needs that typically come with top-tier designs. Revealed at CES, the new Phison E37T is a Gen5 SSD controller focused on value, using a DRAM-less approach while still aiming for high performance in compact devices.
Phison already plays at the high end of the Gen5 storage market with its E28 controller, and it has also offered more affordable DRAM-less solutions before. The E37T continues that direction, combining incremental core architecture updates with support for modern 3D NAND running at up to 4800 MT/s. Phison says this delivers a notable performance boost on value-oriented platforms, and the controller uses a 4-channel design to balance efficiency and throughput.
In terms of real-world headline specs, the E37T is rated for up to 14.7 GB/s sequential read speeds and up to 13.0 GB/s sequential write speeds. Random performance is also strong on paper, reaching up to 2,000K 4KB random IOPS. That mix is aimed squarely at users who want fast game loads, quick file transfers, and snappy system responsiveness, especially in small PCs where heat and battery life matter.
One of the biggest selling points is power efficiency. Phison rates the E37T at under 2.3W, which makes it especially attractive for laptops, handheld gaming PCs, and compact desktop builds like mini PCs where keeping temperatures low can be just as important as raw speed. Phison also notes that the controller is expected to show up across multiple popular M.2 sizes, including 2280, 2242, and 2230, helping it fit everything from standard desktops to ultra-compact devices.
While no specific consumer SSD models using the E37T have been officially announced yet, early availability is expected to ramp up later, with the first wave of drives likely appearing around Computex 2026.
Alongside the E37T news, Phison also shared an update for its flagship E28 Gen5 SSD controller. The company says E28-based drives will expand to larger 8TB capacities, while continuing to target the enthusiast tier with performance figures of up to 14.9 GB/s reads and 14.0 GB/s writes. For random performance, the E28 platform is listed at up to 2600K read IOPS and 3000K write IOPS, reinforcing its role for high-end gaming PCs, workstations, and heavy content creation workloads.
With the E37T and the expanded E28 roadmap, Phison is clearly aiming to cover the full range of PCIe Gen5 SSD demand: flagship performance for enthusiasts, and a more power-efficient, cost-conscious path for mainstream devices that still want blistering Gen5 speeds.
