Skip to content

MiniCSU-3 USB Serial Port (COM18) Driver

Download for Windows — free, fast, always up-to-date

USB Rtp Windows 10, 8.1, 7, Vista, XP
This driver download is available for Windows PCs.
At a Glance
DeviceMiniCSU-3 USB Serial Port (COM18)
VendorRtp
Supported OSWindows 10, 8.1, 7, Vista, XP
SafetyScanned, malware-free
LicenseFree
No Registration Required Download free — no signup, no account, no waiting
On This Page

The MiniCSU-3 USB Serial Port (COM18) driver enables Windows to communicate with the Rtp device through a virtual serial port over USB. It is needed when setting up the device for the first time, restoring a missing COM port, or troubleshooting a connection that your serial communication software cannot detect.

Key Features

  • USB-to-serial communication: Provides the driver interface needed for compatible applications to exchange data with the connected device.
  • COM port access: Allows Windows to expose the device as a serial port that you can select in your communication software. Although this device is listed as COM18, Windows may assign a different port number.
  • Windows compatibility: Listed supported systems include Windows 10, Windows 8.1, Windows 7, Windows Vista, and Windows XP. Choose a package that matches your operating system and architecture.
  • Device recognition: Installing the correct driver can help resolve an unrecognized device or a missing serial-port entry when the cause is a missing or incompatible driver.

How to Install MiniCSU-3 USB Serial Port (COM18) Driver

  1. Check your system. Confirm your Windows edition and whether it is 32-bit or 64-bit. For Windows 10/11 users, note that Windows 10 is listed as supported, but Windows 11 compatibility is not confirmed.
  2. Choose the appropriate package. Before starting your MiniCSU-3 USB Serial Port (COM18) driver download for Windows, verify the package’s source, supported systems, and device match. If choosing a free download, use a trusted source and avoid unrelated bundled software.
  3. Prepare the files. Extract the downloaded archive if necessary. Read any included instructions, particularly guidance on when to connect the USB device.
  4. Install the driver. Run the supplied installer if available. Otherwise, open Device Manager, locate the connected device, select Update driver, and browse to the extracted driver folder.
  5. Verify the connection. Restart if prompted, then check Device Manager under Ports (COM & LPT). Select the assigned COM port in your application and use the serial settings required by your equipment.

Keep the driver updated when a compatible release addresses a connection issue or supports a system change. Before you update, compare the installed driver with the latest version offered by a trusted source, and confirm that it supports your specific device and Windows edition.

Driver Details

DeviceMiniCSU-3 USB Serial Port (COM18)
VendorRtp
CategoryUSB
Supported OSWindows 10, 8.1, 7, Vista, XP
PublishedNovember 1, 2026
UpdatedNovember 2, 2026
This driver download is available for Windows PCs.

Report a problem with this driver page