UFS 4.0 doubles UFS 3.1 bandwidth to 4200 MB/s using MIPI M-PHY Gen 5 lanes. Used in Samsung Galaxy S23 series and Qualcomm Snapdragon 8 Gen 2 flagships for ultra-fast app launch and camera buffer clearing.
| Pin | Name | Function | Type |
|---|---|---|---|
| REF_CLK | REF_CLK | Reference clock | BUS |
| RST# | RST# | Device reset | I/O |
| RXP0 | RXP0 | RX lane 0 positive Gen 5 | BUS |
| RXN0 | RXN0 | RX lane 0 negative | BUS |
| TXP0 | TXP0 | TX lane 0 positive Gen 5 | BUS |
| TXN0 | TXN0 | TX lane 0 negative | BUS |
| VCC | VCC | Power supply | PWR |
| GND | GND | Ground | GND |