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Phison Unveils Lightning-Fast New SSD Controllers, the E31T and E27T


The E31T controller was just recently released by Phison, and it is capable of rates of up to 10 GB/s. This represents a moderate loss in performance when compared to its more powerful cousin, the E26, which is capable of speeds of up to 14 GB/s. In compared to its contemporaries, the E31T, which was designed to be a simplified PCIe 5.0 controller for solid-state drives (SSDs), might have a lower cooling demand. This is because the E31T was built as a controller for SSDs. Phison is making its debut in controllers that are built using a 7 nm process. The E31T solid-state drive controller is driven by an ARM Cortex-R5 central processing unit (CPU), and it is Phison’s first venture into the controller market.

The company believes that this controller may have increased power efficiency because there is no DRAM cache included in the design. This may be partially attributable to the absence of a DRAM cache in the system. In addition, it is essential to be aware that the controller only has four memory channels, which is a significant reduction from the previous iteration’s total of eight memory channels. Phison is releasing both the E21T controller and the E27T controller, the latter of which is an improved version of the former. Both releases are happening at the same time.

The new controller, much like its predecessor, does not come with DRAM and use the more archaic PCIe 4.0 interface. This is because DRAM is not currently available. Despite the fact that it can handle four NAND channels, each of which can have a maximum capacity of eight terabytes, it is still produced using a technique that requires a 12 nm process. In spite of this, it still manages to outpace the E12T in both read and write speeds, which come in at 7,400 MB/s and 6,700 MB/s respectively.