USB 3.1 Gen 1 (backwards compatible with USB 2.0 and 1.1).

The PS2251-09 serves as a bridge between the host computer's USB 3.0 interface and the internal NAND flash memory .

: Used primarily in mass-market USB sticks where capacity is prioritized over high-speed file transfers. Custom Builds

❌ Brutal write cliff with cheap TLC ❌ Runs hot under sustained load