Standard installers often fail, so manual installation via Device Manager is frequently necessary:
error. Windows had tried to be helpful by installing a generic driver, but it was the wrong one. sci usb2serial drivers
| Model | Chipset | Driver Ease (1–10) | SCI Compatibility | | -------------------------------- | -------- | ------------------ | ----------------- | | Brainboxes US-320 | FTDI FT232RL | 10/10 (native) | Excellent | | Startech ICUSB2321F | FTDI FT231X | 10/10 | Excellent | | Siemens PC Adapter USB (original) | ASIC (custom) | 10/10 (STEP7) | Perfect | Standard installers often fail, so manual installation via