Ub93 Driver Windows 10 | Direct Link
UB93 Driver for Windows 10: A Complete Technical Guide
The term UB93 generally refers to a family of low-cost USB-to-serial bridge controllers, most commonly associated with chips like the CH340, CH341, or the older PL2303 series (where "UB93" may appear as a silkscreen marking on the PCB or as a device ID in hardware enumeration). It is widely used in Arduino clones, USB-to-TTL converters, programmer modules, GPS receivers, and industrial control interfaces.
The device shows up, but my software cannot open COM port
Cause: Port conflict or incorrect baud rate. Fix: ub93 driver windows 10
- Check which COM port Windows assigned (Device Manager > Ports).
- Open your serial terminal software (Putty, TeraTerm, etc.) and match the baud rate (often 9600, 115200, or 57600 for UB93 devices).
- Disable "Use FIFO buffers" in the driver settings.
Method A: Automatic Installation (Plug and Play)
- Connect the UB93 adapter to a USB 2.0 or 3.0 port.
- Ensure the PC is connected to the internet via Ethernet.
- Open Settings > Update & Security > Windows Update.
- Click Check for updates. Windows will attempt to pull the driver automatically.
3. Post-Installation Configuration
Once the driver is installed:
- COM Port Number: Right-click the device in Device Manager → Properties → Port Settings → Advanced → COM Port Number. Choose COM1–COM4 if your software requires low numbers.
- Baud Rate: Default is often 9600. Change via "Port Settings" to match your device (e.g., 115200 for Arduino).
- Driver Date & Version: Under Driver tab. For CH340, the latest stable is from 2023–2024 (v3.8 or newer).