If Step 3 didn't work, force Windows to forget the bad driver.
Summary: Code 43 on the Kinamax TS-9900 is rarely a broken device. It is almost always a driver mismatch. Downgrading the Prolific driver to an older version (v3.3.x) is the most reliable fix for this specific adapter.
Kinamax TS-9900 is a high-power wireless USB adapter primarily used for enhancing Wi-Fi signal range (up to 5 km in ideal conditions). While "driver 43" often refers to a specific version or legacy search term for 4.3 drivers, finding the correct software depends on identifying which internal chipset your specific unit uses: the Ralink RT3070 Realtek 8187L Step 1: Identify Your Chipset
Before downloading, you must check which chipset is inside your device: Check the Label: kinamax ts9900 driver 43
The physical unit often lists the chipset (e.g., "RT3070" or "8187L") on the back. Device Manager:
Plug the device into your PC, right-click the Start button, and select Device Manager
. Look under "Network Adapters" or "Other Devices" for a name matching one of these chips. Microsoft Learn Step 2: Download the Driver If Step 3 didn't work, force Windows to
Since Kinamax is a generic brand, drivers are typically sourced from the chipset manufacturer or community archives: Microsoft Update Catalog
Kinamax TS‑9900 Driver 43 – A Comprehensive Overview
# 1. Install DKMS and required build tools
sudo apt update && sudo apt install -y dkms build-essential linux-headers-$(uname -r)
# 2. Download the tarball
wget https://downloads.kinamax.com/ts9900/driver43/kinamax-ts9900-driver43.tar.gz
sha256sum kinamax-ts9900-driver43.tar.gz # Verify against official hash
# 3. Extract and install
tar -xzf kinamax-ts9900-driver43.tar.gz
cd kinamax-ts9900-driver43
sudo ./install.sh # This registers the DKMS module and creates /dev/kinamax0
# 4. Add the current user to the 'dialout' group for device access
sudo usermod -aG dialout $USER
newgrp dialout
# 5. Verify the device
dmesg | grep -i kinamax
ls -l /dev/kinamax0
# 6. Use kinamaxctl to configure
sudo kinamaxctl set-media 80
sudo kinamaxctl set-density normal
sudo kinamaxctl save-profile Retail_80
# 7. Print a test page
sudo kinamaxctl print-test
The driver automatically creates a udev rule (/etc/udev/rules.d/99-kinamax.rules) to set appropriate permissions each time the printer is plugged in. Summary: Code 43 on the Kinamax TS-9900 is
The Issue: You have plugged in your Kinamax TS-9900 (likely a USB-to-Serial adapter), but it doesn't work. When you check Device Manager, you see a yellow exclamation mark and the error message: "Windows has stopped this device because it reported problems (Code 43)."
This usually means the driver is corrupted, incompatible with your Windows version, or there is a hardware glitch.
Kinamax has historically released drivers in a roughly quarterly cadence. Driver 43 is the 12th major Windows release and the 9th major Linux release. Its development was guided by three primary objectives:
The result is a driver that is not only more stable but also more transparent to system administrators and developers.