Sci-usb-2-serial-v1.5.0.1 Better (2025)

| Test Scenario | Result | |-----------------------------|---------------------------------------| | Windows 7 x64 + RealTerm | ✅ Stable at 115200 bps, 1 hour loopback | | Windows 10 22H2 (forced) | ❌ Code 10 error after sleep/resume | | macOS (any) | ❌ No driver available | | Linux (Ubuntu 22.04) | ⚠️ Works with pl2303 module, but may drop packets | | Cisco console (9600, 8N1) | ✅ Reliable | | Arduino IDE upload (57600) | ⚠️ Occasional sync errors on clones |

Upon reboot, press or F7 to select "Disable driver signature enforcement". Step 2: Manual INF Installation via Device Manager sci-usb-2-serial-v1.5.0.1

: Ensure your configuration software (e.g., Holley EFI V5 or later) matches the firmware version. If the ECU or handheld device has a different version, it may require a matching firmware upgrade to communicate correctly. Connectivity Fixes Connectivity Fixes Version 1

Version 1.5.0.1 appears to be a final release from ~2012–2014. No security or feature updates are available. The manufacturer (SC) likely no longer maintains the product. Seamlessly maps connected USB devices to assignable virtual

Seamlessly maps connected USB devices to assignable virtual COM ports ( /dev/ttyUSBx Hardware/Software Flow Control:

: Version 1.5.0.1 is frequently used with Prolific or FTDI-based adapters, commonly found in Windows and Linux environments.