| Feature | | PS2251-09 (PS2309) | PS2251-17 (PS2317) | |---------|------------------------|------------------------|------------------------| | Interface | USB 3.2 Gen 1 | USB 3.2 Gen 1 | USB 3.2 Gen 2 (10Gbps) | | NAND Type | TLC/QLC | MLC/TLC | TLC (3D NAND only) | | AES Encryption | No | Yes (256-bit) | Yes (256-bit) | | Max Sequential Read | ~130 MB/s | ~200 MB/s | ~400 MB/s | | Typical Use | Budget promo drives | Business drives | High-performance | | Price Point | $0.80–$1.50 per controller | $2–$3 | $4–$6 |
The PS2251-19 is engineered for modern workflows. While it isn't a Gen 2 (10Gbps) controller, it maximizes the Gen 1 ceiling. Up to 400 MB/s - 450 MB/s . phison ps2251-19