1. Introduction
The ATEN UH3235 USB-C Multiport Mini Dock is a versatile 4-in-1 solution designed to connect a USB-C enabled computer, smartphone, or game console to various peripherals via a single cable. This compact docking station expands your device's connectivity, offering HDMI video output, USB Type-A ports for data transfer and peripheral connection, and USB-C Power Delivery passthrough.
With broad compatibility across operating systems including PC, Mac, iPad Pro, Android smartphones, and USB-C game consoles, the UH3235 enhances productivity and entertainment by providing crystal-clear 4K video output and efficient data transfer capabilities.
2. Features
- Multifunctional USB-C mini dock for laptop, smartphone, and USB-C game console.
- Supports USB Power Delivery 2.0 to charge up to 60W (additional USB-C PD power adapter required).
- Supports 4K video resolutions - up to 3840 x 2160 at 30Hz.
- Supports Samsung DeX or Huawei Desktop mode.
- Lightweight, card-sized design - Sleek, ultra-mini design for easy carrying.
- Equipped with USB 3.2 Gen 1 Type-A port for data transfer up to 5Gbps.
- Includes a USB 2.0 Type-A port optimized for keyboard and mouse connections to avoid signal interference.
3. Package Contents
The ATEN UH3235 package typically includes the following items:
- 1x ATEN UH3235 Mini Docking Station
- 1x User Manual (digital or printed)
Note: Contents may vary based on region or specific product bundle. Please check the product packaging for exact details.
4. System Requirements
Before using the ATEN UH3235, ensure your device meets the following requirements:
- A host device (laptop, smartphone, or game console) with a USB-C port that supports DisplayPort Alternate Mode (Alt Mode).
- For Power Delivery functionality, a USB-C PD power adapter (not included) is required.
- Operating System: Windows, macOS, iPadOS, Android, or compatible gaming console OS.
5. Product Overview
Familiarize yourself with the physical components and ports of the UH3235 Mini Docking Station.

Figure 5.1: Front view of the ATEN UH3235 Mini Docking Station, showing the ATEN logo and two USB Type-A ports (one USB 3.2 Gen 1, one USB 2.0).

Figure 5.2: Rear view of the ATEN UH3235 Mini Docking Station, displaying the DC IN USB-C port, another USB-C port (for host connection), and an HDMI port.

Figure 5.3: Diagram illustrating the connection points of the UH3235. The front USB Type-A ports connect to peripherals like a USB flash drive and a keyboard/mouse. The rear ports connect to a host device (laptop, smartphone, game console) and an external display, with power delivery support via the DC IN port.
6. Setup Instructions
Follow these steps to set up your ATEN UH3235 Mini Docking Station:
- Connect to Host Device: Plug the integrated USB-C cable from the UH3235 into the USB-C port of your laptop, smartphone, or game console. Ensure your device's USB-C port supports DisplayPort Alt Mode.
- Connect Display: Connect an HDMI cable from your monitor or TV to the HDMI port on the UH3235.
- Connect Peripherals:
- For high-speed data transfer (e.g., USB flash drives), use the blue USB 3.2 Gen 1 Type-A port.
- For keyboard and mouse, use the black USB 2.0 Type-A port to minimize interference.
- Power Delivery (Optional): If your host device requires charging, connect a USB-C PD power adapter (not included) to the "DC IN" USB-C port on the UH3235. The dock will pass through up to 60W of power to your host device.
- Verify Connection: Once all connections are made, your external display should show your device's screen, and connected USB peripherals should be recognized.
7. Operating Instructions
The ATEN UH3235 operates automatically once connected. Here are key functionalities:
- Video Output: The HDMI port supports resolutions up to 4K (3840x2160) at 30Hz. Your host device's display settings can be adjusted to extend or mirror your desktop.
- USB Data Transfer: Use the USB 3.2 Gen 1 port for fast data transfer with compatible devices. The USB 2.0 port is ideal for stable connections with input devices like keyboards and mice.
- Power Passthrough: When a USB-C PD power adapter is connected to the "DC IN" port, the dock will supply power to your connected laptop, smartphone, or game console. This allows you to charge your device while using the dock's other features.
- Desktop Modes: For compatible smartphones (e.g., Samsung DeX, Huawei Desktop mode), the dock enables a desktop-like experience on an external monitor, enhancing productivity.
8. Maintenance
To ensure the longevity and optimal performance of your ATEN UH3235 Mini Docking Station, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners, aerosols, or abrasive solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts.
- Ventilation: Ensure the device has adequate ventilation and is not covered, especially during operation.
9. Troubleshooting
If you encounter issues with your ATEN UH3235, refer to the following common problems and solutions:
| Problem | Possible Cause / Solution |
|---|---|
| No display on external monitor. |
|
| USB devices are not recognized. |
|
| Host device is not charging via PD. |
|
| Intermittent connection issues. |
|
10. Specifications
| Attribute | Value |
|---|---|
| Model Number | UH3235 |
| Product Dimensions | 3.66 x 2.76 x 0.59 inches |
| Item Weight | 1.76 ounces (50 Grams) |
| Hardware Interface | USB Type C, HDMI |
| Compatible Devices | Laptops, Smartphones, USB-C Game Consoles |
| Total USB Ports | 2 (1x USB 3.2 Gen 1 Type-A, 1x USB 2.0 Type-A) |
| Total HDMI Ports | 1 |
| Video Resolution | Up to 3840 x 2160 @ 30Hz |
| Power Delivery | Up to 60W Passthrough (5V, 9V, 15V, 20V PD profiles) |
| Color | Grey |
| Manufacturer | ATEN |
11. Warranty and Support
ATEN products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please refer to the official ATEN website or contact ATEN customer support directly.
Please have your product model number (UH3235) and purchase information ready when contacting support.
Disclaimer: Product specifications and appearance are subject to change without notice. All trademarks and registered trademarks are the property of their respective owners.





