1. Introduction
The TOTU YL-DC111 is a versatile 15-in-1 USB C docking station designed to expand the connectivity of your laptop. It provides multiple ports for display, data transfer, power delivery, and network connectivity, enhancing productivity for both Windows and macOS users.

Image: The TOTU 15-in-1 USB C Docking Station, showcasing its compact design and various ports.
2. Features
This docking station integrates 15 essential ports to streamline your workspace:
- 1x Type-C Host Port: Connects to your laptop.
- 2x HDMI Ports: For external displays (HDMI 1 supports up to 4K@60Hz, HDMI 2 supports up to 4K@30Hz).
- 1x DisplayPort (DP): For external display (supports up to 4K@60Hz).
- 1x USB-C 3.1 Port: Data transfer up to 10Gbps.
- 1x USB A 3.1 Port: Data transfer up to 10Gbps.
- 1x Type-C PD 3.0 Port: Power Delivery up to 100W input, 85W output to laptop.
- 3x USB 3.0 Ports: Data transfer up to 5Gbps.
- 1x USB 2.0 Port: For connecting keyboard, mouse, or other low-speed devices.
- 1x Gigabit Ethernet (RJ45) Port: Stable wired network connection (10/100/1000Mbps).
- 1x SD Card Reader: For SD, SDHC, SDXC cards.
- 1x TF Card Reader: For Micro SD, Micro SDHC, Micro SDXC cards.
- 1x 3.5mm Audio/Microphone Port: For headphones or speakers.

Image: Overview of the TOTU 15-in-1 USB C Docking Station highlighting its multi-functional capabilities.
Video: An official overview of the TOTU 15-in-1 Docking Station, demonstrating its features and connectivity options.
3. Compatibility
The TOTU YL-DC111 docking station is compatible with laptops featuring a Type-C port that supports DisplayPort Alt Mode (Thunderbolt 3 or a full-function USB-C port with display capabilities). Type-C ports that only support data transmission and power supply are not compatible.
- Windows Systems: Supports MST (Multi-Stream Transport) mode, allowing for extended triple display (A+B+C). When using dual or triple displays, the resolution will be 1080P. For Intel Windows laptops, a black screen may occur on one of the four display screens due to chip limitations when attempting triple display.
- macOS Systems: Only supports SST (Single-Stream Transport) mode. This means all external monitors will mirror the same display (A+B+B+B), extending only one different display from the laptop.
- Driver: Plug and play, no driver installation required.

Image: Illustration of triple display setup on a Windows system, showing extended desktop functionality.

Image: Illustration of display behavior on macOS, where external monitors mirror the primary display.
4. Setup
- Connect Power (Optional but Recommended): If your laptop supports Power Delivery, connect your laptop's power adapter to the Type-C PD 3.0 port on the docking station. This will charge your laptop while using the dock. The docking station supports up to 100W input and provides up to 85W output to the laptop.
- Connect to Laptop: Use the provided USB-C cable to connect the Type-C Host port on the docking station to your laptop's compatible USB-C port (Thunderbolt 3 or full-function USB-C with DisplayPort Alt Mode).
- Connect Displays: Connect your external monitors to the HDMI and/or DisplayPort outputs on the docking station using appropriate cables.
- Connect Peripherals: Plug in your USB devices (keyboard, mouse, external drives), Ethernet cable, SD/TF cards, and audio devices to their respective ports on the docking station.
The docking station is plug-and-play, meaning no additional drivers are typically required for basic functionality.

Image: Diagram illustrating the power delivery connection, showing 100W input to the dock and 85W output to the laptop.
5. Operating
Once connected, the docking station extends your laptop's capabilities:
- Display Output: Your operating system should automatically detect connected displays. Adjust display settings (resolution, arrangement, mirror/extend) through your computer's display preferences.
- Data Transfer: Use the USB 3.1 (10Gbps), USB 3.0 (5Gbps), and USB 2.0 (480Mbps) ports for connecting external storage, peripherals, and other devices.
- Network Connection: Plug an Ethernet cable into the RJ45 port for a stable wired internet connection. The port supports 10/100/1000Mbps speeds.
- Card Readers: Insert SD or TF cards into the dedicated slots for quick data access. Both card readers can be used simultaneously.
- Audio: Connect headphones or speakers to the 3.5mm audio/microphone port.

Image: Visual representation of high-speed data transfer using the USB 3.1 ports on the docking station.

Image: The RJ45 Gigabit Ethernet port connected, indicating a stable 1000Mbps network connection.
6. Maintenance
To ensure the longevity and optimal performance of your docking station:
- Cleaning: Use a soft, dry cloth to clean the exterior. Avoid liquid cleaners or solvents.
- Storage: Store the docking station in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping or subjecting the device to strong impacts.
- Ventilation: Ensure proper airflow around the docking station to prevent overheating, especially during prolonged use with multiple connected devices.
7. Troubleshooting
- No Display Output:
- Ensure your laptop's USB-C port supports DisplayPort Alt Mode.
- Check all cable connections (USB-C to laptop, HDMI/DP to monitors).
- Verify monitor input sources are correctly selected.
- For macOS, remember that only mirror mode is supported for multiple external displays.
- For Windows with Intel graphics, be aware of potential limitations causing one screen to be black in a triple display setup.
- Try connecting one display at a time to isolate the issue.
- Laptop Not Charging:
- Ensure your laptop's power adapter is connected to the docking station's Type-C PD 3.0 port.
- Verify your laptop supports USB-C Power Delivery.
- Check the power adapter's wattage; it should be sufficient for your laptop and the docking station.
- USB Devices Not Recognized or Slow:
- Ensure devices are properly plugged into the correct USB ports.
- Some high-power USB devices may require external power or a direct connection to the laptop if the docking station's power output is insufficient.
- Check if the device requires specific drivers on your operating system.
- No Ethernet Connection:
- Verify the Ethernet cable is securely connected to both the docking station and your router/modem.
- Check your computer's network settings to ensure the Ethernet adapter is enabled and configured correctly.
- Ensure your network is active.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | YL-DC111 |
| Package Dimensions | 9.17 x 5.04 x 1.93 inches |
| Item Weight | 15.6 ounces (0.44 Kilograms) |
| Hardware Interface | DisplayPort, HDMI, USB 3.0, USB 3.1 Type A, USB 3.1 Type C, RJ45, SD/TF Card, 3.5mm Audio |
| Total USB Ports | 8 (1x USB-C 3.1, 1x USB A 3.1, 3x USB 3.0, 1x USB 2.0, 1x Type-C Host, 1x Type-C PD) |
| Number of Ports | 15 |
| Total HDMI Ports | 2 |
| Wattage (PD) | 100W Input (85W Output to Laptop) |
| Color | Grey |
9. Warranty and Support
This TOTU product is covered by a manufacturer's warranty. For specific warranty details, duration, and terms, please refer to the documentation included with your purchase or contact TOTU customer support directly. For technical assistance or troubleshooting beyond this manual, please visit the official TOTU website or contact their support team.



