Phison uses two naming conventions:
When you see "PS2319" flashed on a small black chip inside a drive, you are looking at the PS2251-19.
| Tool | Purpose | |------|---------| | Phison MPALL (MP Tool) | Low-level formatting, firmware update, reset, mode setting | | Phison Stool | Simple info read, bad block count | | GetInfo (various forks) | Identify firmware version, NAND type, controller | | ModeConverter | Switch between Removable/Fixed disk, CD-ROM, etc. | phison ps2251-19
Caution: Incorrect MP Tool settings can permanently brick the drive.
Would you like a step-by-step visual reference for the pin-shorting method or a list of tested MPALL versions for specific USB VID/PID? Phison uses two naming conventions:
If your PS2251-19 drive contains critical data and cannot be detected, do not run the MP Tool. The MP Tool will overwrite firmware and destroy data.
Verdict: This is a read-optimized drive. Great for distributing software or media. Painful for backing up a large folder of photos. When you see "PS2319" flashed on a small
You’ll find the PS2251-19 inside:
The Phison PS2251-19 (marketing name) / PS2319 (silicon marking) is a highly integrated, cost-optimized USB 3.2 Gen 1 controller designed for mainstream USB flash drives. It bridges the gap between basic USB 2.0 controllers and high-end, SSD-level USB drives, offering a compelling balance of performance, power efficiency, and advanced features.
| Feature | Details | |---------|---------| | Interface | USB 3.2 Gen 1 (5 Gbps) | | Process node | 55 nm (typical for cost/performance balance) | | Max capacity | Up to 1 TB (with current NAND) | | NAND type | 2D/3D TLC, QLC (including Micron, Kioxia, SK Hynix, YMTC) | | Channels | 2 channels (Dual Channel) | | CE per channel | 4 (Total 8 Chip Enables) | | ECC engine | LDPC (Low-Density Parity-Check) for 3D NAND | | DRAM | DRAM-less (uses HMB if USB bridge supports? No – for USB flash, relies on firmware buffer) | | Encryption | AES-128/256 (optional, vendor-dependent) | | Bootable | Yes (USB-ZIP/USB-HDD) |