At CES, we went hands on with Phison's latest innovations with consumer and enterprise SSDs. The star attraction is the new PS5037-E37T, a DRAM-less SSD controller for mainstream and performance segment SSDs. This chip can drive SSDs across M.2-2280, 2242 and 2230 form-factors, and features 4 NAND flash channels. It is energy-efficient, as it's built on the TSMC 6 nm foundry node. Phison claims astonishing performance figures for its reference-design drive based on the E37T, with up to 14.7 GB/s sequential reads, and up to 13 GB/s sequential writes, along with 2 million IOPS 4K reads/writes. That's not all, its peak power (during an R/W operation) is under 2.3 W, making it ideal for notebooks. A CDM session of the E37T reference SSD was shown with 14925 MB/s reads, 13115 MB/s writes, and 8676 MB/s mixed loads. Such figures put the controller on par with the E26 Max14um revision, a flagship controller from 2024.

Next up is Phison's new flagship client SSD controller, the PS5028-E28, with 8 flash channels allowing drive capacities of up to 8 TB. This controller uses a DDR4 DRAM cache, which should give it superior random write performance. A maxed-out reference 8 TB SSD was shown clocking 14919 MB/s sequential reads, 14008 MB/s sequential writes, and the company claims up to 2.6 million IOPS 4K random reads, with up to 3 million IOPS 4K random writes. This controller pushes performance to the very edge of what's possible with PCI-Express 5.0 x4, accounting for interface overheads. Perhaps the best piece of news with this controller is power, and its peak R/W controller power is shown to be 4.5 W, which should mean drives with even passive heatsinks should sustain advertised performance, without the need for active cooling. We've reviewed an E28 Engineering Sample previously, and also tested a retail drive (Corsair MP700 Pro XT).

Phison Electronics, a global leader in NAND flash controllers and storage solutions, today announced the newest addition to its vast product portfolio, the E37T PCIe Gen 5 controller, to be featured alongside its suite of client solutions at CES 2026. Built with best-in-class efficiency, the E37T utilizes 3D NAND to deliver competitive price-to-performance value for modern consumer workloads across notebooks and mobile devices.

To meet the demand for cost-efficient solutions, the E37T brings core architecture refinements over previous generations to support the latest 3D NAND with up to 4800 MT/s speeds, providing a 38% performance gain for maximum value. 1 The new controller features DRAM-less design and 4-channels making the E37T the ideal single-sided design for notebooks, handhelds and compact systems that require M.2 2280, 2242 or 2230 form factor storage without sacrificing performance.
"As consumer applications demand greater storage capacity and sustained performance in small spaces, the E37T is designed to deliver power-efficient operation while pushing the Gen 5 performance ceiling," said Michael Wu, President & GM, Phison US. "With the next wave of platforms introducing PCIe Gen 5 in smaller form factors, the E37T expands our portfolio with a versatile, high-value storage solution that brings faster, more responsive user experiences to a broad range of devices and use cases."