UGREEN CM555 USB-C Multifunction Docking Station Pro User Guide
UGREEN CM555 USB-C Multifunction Docking Station Pro
Model: CM555 | P/N: 90325
The Adopted Trademarks HDMI, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
Package Contents
- 1 × USB-C Multifunction Docking Station Pro
- 1 × USB-C Cable 1m
- 1 × CD Driver
- 1 × User Manual
Connection
Front View
The front of the docking station features the following:
- [Power Button]
- [LED Indicator]
- [SD Card] slot
- [TF Card] slot
- Two [USB-C Port]s, each supporting up to 10Gbps data transfer.
Back View
The back of the docking station features the following ports:
- 1 × [DisplayPort] (DP) supporting 4K@60Hz, shown with icons for [Projector] and [Monitor].
- 2 × [USB-A Port]s, one supporting 5Gbps (shown with icons for [Mouse] and [Keyboard]) and another supporting 5Gbps (for USB Flash Drive).
- 2 × [HDMI Port]s: HDMI 1 supporting 4K (shown with icons for [Projector] and [Monitor]) and HDMI 2 supporting 8K.
- 1 × [Ethernet Port] (shown with an icon for [Internet]).
- 1 × [USB-C Port] for PD (Power Delivery) charging (shown with icons for [Laptop] and [Charger]).
Bottom Ports
The bottom of the docking station has the following ports:
- 1 × [3.5mm Audio Jack] for [Earphone & Mic Combo].
- 1 × [USB-C Port] for connecting a [Portable Hard Drive].
- 1 × [USB-A Port] for connecting a [USB Flash Drive].
Setup
- Please install the DisplayLink driver first before connecting the dock to your laptop. There are several ways to download it:
- (1) Check your system edition, then install or update the corresponding driver from: https://www.mediafire.com/file/ep4rdl5ztg7912h/90325.rar/file
- (2) CD driver
- ? Note: If you have any problems during the driver installation, please feel free to contact UGREEN support through Amazon.
- Connect your laptop to the [USB-C Port] of the dock with the included USB-C cable.
- Connect your peripherals to your laptop. When connecting to high-power devices, please connect an external power supply to the [PD Port] to ensure stable data transmission.
- ? Note: Short press the power button to turn off the dock. At this point, other ports will stop working; however, the [PD Port] will still provide power to your laptop.
OS Compatibility (Partial)
| Operating System | Supported Operating Systems | Unsupported Operating Systems |
|---|---|---|
| Windows | Windows 11 Windows 10 |
Windows 2000 (SP1 to SP4) or earlier Windows OSes Windows 2003 Server |
| macOS | macOS Monterey (version 12) macOS Big Sur (version 11) |
13-inch MacBook Pro with M2 Chip |
| ... | ... | ... |
Please refer to the [OS Compatibility] information or confirm with UGREEN customer service.
Resolution Setting for Windows 10 & macOS
For Windows 10: Right-click the Desktop > select "Display Setting".
For macOS: Click the Apple Icon > select "System Preferences" > "Displays".
In the display settings, you can select and rearrange displays. Some settings are applied to all displays.
Available resolutions include 1920x1080 (Recommended), 1680x1050, 1600x900, 1440x900, 1400x1050, and 1366x768, all listed as (3D) capable.
Graphics Settings for Windows 10
Click the Windows key + P simultaneously to select the display mode.
Duplicate Mode
Source Device connects to the dock. Option 1 shows the dock outputting to HDMI 1 Display, HDMI 2 Display, and DP Display, all mirroring the source.
Option 2 shows the dock outputting to HDMI 1 Display, HDMI 2 Display, and DP Display, with different content on each.
Extend Mode
Source Device connects to the dock. The dock outputs to HDMI 1 Display, HDMI 2 Display, and DP Display, extending the desktop across these monitors.
? Notes: Not support the "ABBB" or "AAAA" display mode.
Graphics Settings for macOS
Mirror Mode
Click the Apple Icon > "System Preferences" > "Displays" > check the "Mirror Displays" option. This will mirror the content across all connected displays.
The display arrangement shows a single "Source Device" connected to three identical displays labeled "HDMI 1 Display", "HDMI 2 Display", and "DP Display".
Extend Mode
Click the Apple Icon > "System Preferences" > "Displays" > cancel the "Mirror Displays" option. This allows extending the desktop across multiple displays.
The display arrangement shows a "Source Device" connected to four distinct displays labeled "HDMI 1 Display", "HDMI 2 Display", and "DP Display", allowing for separate content on each.
FAQ
Display Issues
-
Why do I have no display when connecting to the HDMI/DP port?
- Check which video port is not outputting the image. If it is HDMI 8K, please check whether your laptop's USB-C port supports video output. If it is HDMI 4K/DP port, please check whether the driver has been installed.
- Please make sure the HDMI or DP cable meet the requirements and the connection between the devices is solid.
- Adjust the display resolution, as the monitor may support lower resolutions than what the dock can support.
- Ensure to select the correct input signal source on your monitor, as some devices need to manually adjust.
- Restart your computers.
- Try another monitor to check whether the display is normal.
-
Can I connect the HDMI 1 4K, HDMI 2 8K, and DP port simultaneously? What's the maximum resolution?
Yes. The maximum resolutions are as follows:
Systems Display HDMI 2 HDMI 1/DP Windows Single display 8K@30Hz Max. 4K@60Hz Max. Multiple displays (Same contents) 4K@60Hz Max. 4K@60Hz Max. Multiple displays (Different contents) 8K@30Hz Max. 4K@60Hz Max. macOS Single/Multiple displays 4K@60Hz Max. 4K@60Hz Max. -
The monitor displays correctly after a black screen when plugging and unplugging the dock, is it normal?
Yes. The monitor will display images after the EDID reading. This usually takes about 10s.
Audio Issues
-
What functions does the 3.5mm audio port support?
Please refer to the table below:
Systems/ Function Supported Microphone Line Control Audio Input/Output Volume Up/Down Play/Pause Previous/Next Windows ✔️ ✔️ ✔️ ❌ macOS ✔️ ✔️ ✔️ ❌ -
I can't hear any sound, is there any solution?
The computer system would automatically select HDMI or 3.5mm audio port to output an audio signal when attached to the dock. You can also enter the "Sound settings" to select the corresponding output device.
Charging Issues
-
How many devices can this docking station connect or charge?
The detailed information is in the following table:
4 × USB (A+C) Total Output Power 2.5-inch Hard Drive Charge Cellphone (5V/1.5A) With an external PD power supply 15W 2 1 Without an external PD power supply 10W 1 1 -
Why does my laptop fail to power charge when attached to the dock?
- Make sure the external power supply is connected properly to the [PD Port] and the laptop is connected correctly to the [USB-C Port].
- Make sure the notebook's USB-C port accepts power charging.
- Disconnect and re-connect the dock cable to your computer.
-
Can I charge the device via the USB-A?
The [USB-A Port] is mainly used for data transmission, and the charging speed will be very slow. Please connect to the [PD Power Supply] first if you want to charge your devices.
Specifications
| Input | Output |
|---|---|
| 1 × USB-C | 2 × USB-C, 3 × USB-A, 1 × 3.5mm Audio, SD/TF Card Slot, 1 × DP, 2 × HDMI, 1 × RJ45 |
| USB Port |
|
| Audio | 3.5mm Audio: Supports earphone & mic |
| Card Reading | SD/TF Card Slot: SD 3.0 supports theoretical transfer rate of up to 104MB/s |
| Video |
|
| Ethernet | RJ45: Auto-negotiation of 10/100/1000Mbps |
| Power Supply | USB-C: PD3.0, 20V/5A, backward compatibility |
| Compatible Systems | Windows/macOS |
Notices
- For the safety of data, please do not directly disconnect the storage device from this product. Before disconnecting, please safely remove the programme.
- Do not throw or drop the product or subject it to strong physical shock.
- Do not dismantle or fix the product by yourself; please contact UGREEN after-sales service if necessary.
- When not in use for a long time, please carefully store the product to avoid dust and humidity.
- Please keep out of reach of children and pets.
After-sales
Please feel free to contact UGREEN on Amazon if you need any support. You can follow the steps below:
- Sign in to your Amazon account and navigate to "Your Orders".
- Next to the relevant order, select "Problem with order".
- Send your messages to UGREEN via "Contact seller".
