8-in-1 USB-C Docking Station – Triple 4K Display, 100W PD, 10Gbps Hub

The UGREEN CM639 8-in-1 USB-C Docking Station transforms your laptop into a powerful multi-display workstation. With dual HDMI, DisplayPort, ultra-fast USB 3.2 Gen2 ports, and 100W Power Delivery, it’s built for professionals who need speed, clarity, and seamless connectivity.

• 8-in-1 expansion: 2× HDMI, 1× DisplayPort, 2× USB-C, 2× USB-A, 1× PD
• Triple display support with dynamic HDR visuals
• Single display up to 4K@60Hz (HDMI or DP)
• Dual display up to 4K@60Hz (HDMI+HDMI or HDMI+DP)
• Triple display up to 3× 4K@30Hz (HDMI+HDMI+DP)
• USB 3.2 Gen2 ports deliver up to 10Gbps data transfer

• Operating Systems: Windows, macOS, Linux, Chrome OS, iPadOS, Android
• Devices: MacBook Pro/Air, iMac, ThinkPad X1, ZenBook, Surface, Chromebook, iPad Pro
• Windows supports MST for extended triple display
• macOS supports SST (mirror mode only)

• Brand: UGREEN
• Model: CM639
• Ports: 8
• Interface: USB Type-C
• USB Standard: USB 3.2 Gen2
• HDMI Output: 2 × 4K@60Hz (Max)
• DisplayPort: 4K@60Hz HDR
• USB-C Data Ports: 2 × 10Gbps
• USB-A Ports: 2 × 10Gbps
• Power Delivery: 100W (85W to host)
• Certifications: CE, FCC

• Triple-display dock vs single-output hubs: massively improved workflow
• USB 3.2 Gen2 vs USB 3.0: double the data speed
• PD 100W vs low-power hubs: charge laptops while fully connected

• Ideal for programmers, video editors, and remote professionals
• Perfect desk upgrade for home or office setups
• Premium UGREEN build quality and reliability

• Connect the dock to your laptop via USB-C
• Attach monitors using HDMI and/or DisplayPort
• Connect peripherals and plug in a PD charger

• 1 × UGREEN CM639 USB-C Docking Station
• User Manual

• USB-C data ports do not support video output
• 85W max charging to laptop (15W reserved for hub operation)
• Surface temperature may rise under full load — this is normal