Ugreen

UGREEN CM639 8-in-1 USB-C Hub

UGREEN CM639 35625 8-in-1 USB-C hub features 2 HDMI, DisplayPort, 2 USB-A, 2 USB-C, 4K@60Hz output, and up to 100W PD charging.

About the product

Key Features

Connect displays and USB accessories together
High-speed USB connections for external storage
Power Delivery for compatible laptops
Expand your workspace through one USB-C connection

UGREEN CM639 8-in-1 USB-C Hub

Turn a port-limited laptop into a more flexible workstation with the UGREEN CM639 hub. Connect external displays, USB storage and everyday accessories without constantly swapping connections. Its combination of video outputs, data ports and laptop power delivery makes it useful for multitasking, creative projects and a desk setup where you want your essential devices connected together.

External Displays Connect HDMI monitors to give your compatible laptop more room for documents, editing tools and applications.
External Storage Connect compatible USB drives and external SSDs to move project files, videos and other large data.
Desk Accessories Keep a keyboard, mouse or other supported USB peripherals connected to your workstation.
Laptop Power Use the dedicated USB-C Power Delivery connection with suitable charging equipment and a compatible laptop.

UGREEN CM639 hub: More Room to Work

Move from a portable laptop to a connected workstation with fewer cables to reconnect.

Performance at a Glance

10 Gbps Theoretical USB 3.2 data transfer rate
100W Maximum supported Power Delivery input

Build Your Workstation

Getting Connected

Connect Your Laptop Attach the hub to a compatible USB-C host port. For external displays, the host must support video output through USB-C.
Add Your Equipment Connect your monitors through HDMI and attach suitable storage devices or peripherals through the USB data ports.
Connect Power When Needed Attach a compatible USB-C Power Delivery charger to the dedicated power input if you want to charge a supported laptop through the hub.

Ports and Technical Details

Technical Specifications

Host Connection	USB-C
USB-A Data Ports	2 × USB-A 3.2
USB-C Data Ports	2 × USB-C 3.2
HDMI Outputs	2 × HDMI
HDMI 1 Maximum Resolution	Up to 4K@60Hz
Power Input Connector	USB-C Power Delivery

Know Your Connections

Choose the Right Port

Which connector sends video to an HDMI monitor?

Answer: HDMI
Which connection accepts laptop-charging power?

Answer: USB-C PD

Frequently Asked Questions

Will a USB-C docking station work with any USB-C laptop?

Not every USB-C port supports every function. To use the external video outputs, your laptop must support video over USB-C, such as DisplayPort Alt Mode. Charging also requires a compatible host.

Do the USB-C data ports support video output?

No. The USB-C data connections are intended for data transfer. Use the dedicated video connectors for compatible external displays.

Can a USB-C hub extend different screens on Windows and macOS?

The manufacturer specifies MST multi-display support for Windows. MacBooks have different display limitations and may mirror connected external screens. Available modes depend on the host computer.

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