- New

10-in-1 Multiport Expansion
Dual HDMI Outputs (4K Support)
Gigabit Ethernet Port (RJ45)
USB-C Power Delivery (Up to 100W)
USB 3.0 and USB 2.0 Ports
USB-C Data Port
SD and TF Card Readers
Aluminum Alloy Build
Plug and Play Compatibility
Universal Compatibility with USB-C Devices
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
The UGREEN CM639 is engineered to expand a single USB-C port into ten useful interfaces. This makes it an ideal solution for users seeking to connect multiple peripherals, displays, and power sources simultaneously without compromising performance or device safety.
Ports: 2 x HDMI
Resolution Support:
Single HDMI: Up to 4K @ 60Hz (depending on host device compatibility)
Dual HDMI: Up to 4K @ 30Hz (extended or mirrored mode on supported devices)
Supports extended desktop across two monitors, making it suitable for multitasking, presentations, and professional workflows.
Enables a fast, stable wired internet connection.
Supports speeds up to 1000Mbps.
Ideal for areas with unreliable Wi-Fi or for devices that don’t have a built-in Ethernet port.
PD Port: Supports pass-through charging up to 100W.
Provides sufficient power to charge laptops, tablets, or smartphones while simultaneously using other ports.
Ensures stable power delivery to high-demand USB-C laptops such as MacBook Pro, Dell XPS, etc.
1 x USB 3.0:
Data transfer speed up to 5Gbps.
Ideal for external hard drives, flash drives, and other high-speed peripherals.
2 x USB 2.0:
Suitable for peripherals like keyboards, mice, or printers.
Helps reduce interference with wireless devices by separating data-intensive and low-speed devices.
Provides high-speed data transfer (up to 5Gbps).
Allows additional USB-C device connectivity like external SSDs or accessories.
Not for video output or charging.
Allows simultaneous reading of SD and microSD cards.
Supports SDHC/SDXC cards, ideal for photographers and video editors.
Transfer speeds depend on the card and host system but are sufficient for large media files.
Constructed with premium aluminum alloy for better heat dissipation and durability.
Compact and lightweight, suited for travel and mobile setups.
LED indicator for active operation status.
No need for external drivers or software.
Works instantly when plugged into compatible USB-C devices.
Compatible with macOS, Windows, ChromeOS, Linux, iPadOS, and Android (device-specific).
Designed for USB-C devices that support DisplayPort Alt Mode and Power Delivery.
Compatible with:
MacBook Pro/Air (with M1/M2/M3 chips)
Dell XPS
HP Spectre
Lenovo ThinkPad
iPad Pro (USB-C models)
Samsung DeX supported devices
Note: Full functionality (especially dual HDMI and power delivery) depends on the host device’s capabilities. Devices that lack DisplayPort Alt Mode will not support video output.