Phison E31 PCIe 5.0 SSD Engineering Sample Preview - Impressive Efficiency 39

Phison E31 PCIe 5.0 SSD Engineering Sample Preview - Impressive Efficiency

Test Setup »

The Drive

SSD Front
SSD Back

The drive is designed for the M.2 2280 form factor, which makes it 22 mm wide and 80 mm long.

SSD Interface Connector

PCI-Express 5.0 x4 is used as the host interface to the rest of the system, which doubles the theoretical bandwidth compared to PCIe 4.0 x4.

SSD Teardown PCB Front
SSD Teardown PCB Back

On the PCB you'll find the controller and two flash chips, a DRAM cache chip is not included.

Chip Component Analysis

SSD Controller

The Phison E31 is the company's second PCI-Express 5.0 controller. It supports a four-lane configuration and four flash channels, it's a cost-optimized DRAM-less design. The controller is produced using a 7 nm process at TSMC Taiwan.

SSD Flash Chips

The two flash chips are Toshiba 218-layer 3D TLC NAND. Each chip has a capacity of 1 TB.
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Oct 11th, 2024 17:53 EDT change timezone

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