The Phison E26 Max14um Reference Design is a solid-state drive in the M.2 2280 form factor, launched in 2024. It is only available in the 2 TB capacity listed on this page. With the rest of the system, the Phison E26 Max14um Reference Design interfaces using a PCI-Express 5.0 x4 connection. The SSD controller is the PS5026-E26 from Phison, a DRAM cache chip is available. Phison has installed 232-layer TLC NAND flash on the E26 Max14um Reference Design, the flash chips are made by Micron. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are handled more quickly. The cache is sized at 220 GB, once it is full, writes complete at 4000 MB/s. Copying data out of the SLC cache (folding) completes at 1360 MB/s. Thanks to support for the fast PCI-Express 5.0 interface, performance is excellent. The E26 Max14um Reference Design is rated for sequential read speeds of up to 14,600 MB/s and 12,700 MB/s write; random IO reaches 1500K IOPS for read and 1600K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. Phison guarantees an endurance rating of 1400 TBW, a typical value for consumer SSDs.