Download the official CipherLab 308 USB-to-RS232 interface converter driver. Compatible with Windows 11/10/8/7. Fix connection issues and install step by step.
Title: How to Install CipherLab 308 USB to RS232 Driver (Windows) cipherlab 308 usbtors232 interface converter driver top
Script:
0:00 – Intro: “CipherLab 308 converter not working? Here’s the fix.”
0:10 – Show device: USB to DB9 female.
0:20 – Check chipset: Device Manager → Properties → Details → Hardware IDs → look for VID_067B&PID_2303 (Prolific).
0:35 – Download legacy driver v3.8.0 from Prolific’s archive.
0:50 – Install: right-click → Run as admin.
1:05 – Plug in converter → COM port appears.
1:15 – Test with serial terminal (PuTTY).
1:25 – Outro + link to driver. Title: How to Install CipherLab 308 USB to
Note: CipherLab does not provide public direct download links for legacy models. Use the following verified sources: Note: CipherLab does not provide public direct download