Shared Memory Dump
Most manufacturers host driver archives on their support pages. Kinamax’s official site may have a “Downloads” or “Support” section. Look for:
Fix:
Some Kinamax TS9900 units use a cheaper CH340 chip. Get the official WCH.CN driver: kinamax ts9900 driver download free new
This is the most common Kinamax error. Solution: You have a fake Prolific chip. You must use an older driver version (v3.3.2.102). Uninstall the new driver and install the legacy driver from our link above.
Even with a free new driver, problems can arise. Here’s how to fix them: Most manufacturers host driver archives on their support
| Issue | Solution |
|-------|----------|
| “Driver not signed” error | Boot into “Disable driver signature enforcement” permanently via bcdedit /set testsigning on (admin CMD). |
| Device shows as “Unknown USB Device” | Unplug, uninstall the generic driver via Device Manager, then reinstall the Kinamax driver. |
| Driver installs but software crashes | Run the companion scope software in Windows 7 Compatibility Mode. |
| No data reading | Try a different USB port (preferably USB 2.0, not 3.0). Also replace the USB cable. |
Yes. Kinamax does not charge for drivers. If a site asks for payment, leave immediately – it’s a scam. Get the official WCH
If you own a Kinamax TS9900—whether it’s a USB oscilloscope, a data acquisition module, or a multi-function tester—you already know that the hardware is only half the story. Without the correct, up-to-date driver, your PC simply won’t recognize the device. This article provides a step-by-step guide to downloading the free, new Kinamax TS9900 driver, troubleshooting common issues, and ensuring peak performance.
Current Status: Legacy Device The Kinamax TS-9900 is an older USB 2.0 to RS-232 Serial Adapter. Because it is a legacy device, the original manufacturer has largely discontinued support, and official drivers are rarely hosted on primary support pages any longer.
However, the device utilizes a very common chipset. Follow the steps below to find the correct driver for Windows 10, Windows 11, and older operating systems.