Phison Launches 8-Channel SSD Controller Chip Phison PS5025-E28 with Read Speeds Up to 14,500MB/s

Phison, a leading solid-state drive (SSD) controller manufacturer, recently unveiled its new eight-channel SSD controller, the PS5025-E28, poised to offer compatibility with the latest 3D NAND technology.

According to Phison, the E28 controller chip can achieve read speeds of up to 14,500MB/s, supports PCIe 5.0 x 4 protocol, accommodates SSDs up to 32TB, and delivers peak random read/write performance of up to 3 million IOPS.

The chip is manufactured using TSMC's N6 process, a significant advancement over its predecessor, the PS5026-E26 chip, which was produced with TSMC's 12FFC (12nm) process. The adoption of a more advanced manufacturing process helps reduce power consumption. However, the overall power consumption of the E28 is 8.5W (including flash chip consumption), compared to the E26's 7W. This increase is attributed to the growing complexity of NAND flash memory cells, which require more processing for reliable reading.

At CES 2025, Phison showcased a sample from Kioxia featuring 3D TLC NAND flash memory (T2BIG5A2V), with other manufacturers like Micron expected to release products based on this controller chip.

Phison has yet to announce when SSD products equipped with the E28 chip will hit the market, as the new controller chip requires additional time for certification, meaning finished products may still be some time away.

Ultimately, the PS5025-E28 chip is likely to be used in both high-end consumer SSDs and data center SSDs, with a priority on data centers. Consequently, the price for consumer-grade products equipped with the E28 is expected to be high.