PHISON – Corsair EX400U USB4 Review: The Fastest Portable SSD We’ve Tested Yet

“The Corsair EX400U features Phison’s PS2251-21 controller and 3D TLC NAND (from Kioxia if I am not mistaken). It comes in 1TB, 2TB, and 4TB capacities, and is one of the few external SSDs with a magnetic ring on the back, allowing it to easily attach to metal surfaces or MagSafe-compatible smartphones like the iPhone.

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According to Corsair, the EX400U is built with Phison’s newer PS2251-21 controller, which is touted as the world’s first native USB 4.0 controller. Phison states that the PS2251-21 (U21) USB 4.0 NAND flash controller eliminates the need for bridge boards, enabling compact, single-chip portable SSDs with lightning-fast speeds.

Phison claims the PS2251-21 offers low cost and efficient heat dissipation, thanks to its advanced manufacturing process and design, while delivering high performance and power efficiency. It also features full backward compatibility with all existing USB standards across various generations and lane configurations, making it a versatile solution for all USB interface requirements.”- thepcenthusiast.com

Source: thepcenthusiast.com