Many users need this driver for SPD ResearchDownload or UpgradeDownload:
After installation, the COM port should appear as SPD VCOM Port (COMx) under Ports (COM & LPT) in Device Manager.
The "SPD Driver" is most frequently associated with:
Important: Before downloading, confirm your device’s hardware ID. Open Device Manager → Right-click the unknown device → Properties → Details → Hardware Ids. If you see USB\VID_1782&PID_5D20 or similar, this driver is correct. spd driver 20 0114 update link
Here is exactly how to acquire the driver using the spd driver 20 0114 update link safely:
Pro tip: The zip file contains three items:
Q1: Is the SPD Driver 20.0114 compatible with Windows 11?
Yes, fully compatible. It is WHQL-certified for Windows 11 22H2 and 23H2. Many users need this driver for SPD ResearchDownload
Q2: I need a driver for Linux. Does the 20.0114 update work?
No. This driver is for Windows only. For Linux, use the open-source spd_serial module (kernel 5.10+).
Q3: Why does Windows flag the driver as unsigned?
Older versions of the driver (pre-2021) use SHA-1 certificates. The 20.0114 update includes a SHA-256 signature, but Windows may still warn if Secure Boot is enabled incorrectly.
Q4: Can I roll back if 20.0114 causes issues?
Yes. In Device Manager → Driver → Roll Back Driver. Keep the previous installer (e.g., version 20.0112) as a fallback. After installation, the COM port should appear as
Q5: The update link is dead. What do I do?
Try replacing spd driver 20 0114 update link with Advantech PCM-COM driver 20.0114 in your search, as the product was rebranded.
You might be wondering, “If my device is working, why update?” Here are three critical reasons to search for this specific version:
Without this update, users report random system freezes every 3-4 hours of continuous operation.
Once you have the authentic spd driver 20 0114 update link file, follow this installation sequence: