The UGREEN USB-C Dual HDMI Hub transforms your laptop into a professional all-in-one workstation built for peak productivity. With 10 essential ports—including dual HDMI (8K & 4K), PD 100W fast charging, Gigabit Ethernet, SuperSpeed USB 3.0, and SD/TF card readers—this compact dock keeps every connection at your fingertips for seamless multitasking at home, in the office, or on the go.

Constructed from premium aluminum alloy, the UGREEN USB-C Dual HDMI Hub offers excellent heat dissipation, exceptional durability, and a sleek, portable design that complements MacBook Pro, Air, and all USB-C Windows laptops. Whether you’re editing video, presenting content, or streaming media, it delivers speed, reliability, and flexibility in a single hub.

✨ Key Features

🖥️ Dual HDMI 8K & 4K Ultra HD Display

Expand your workspace with dual HDMI ports supporting 8K @ 30 Hz or dual 4K @ 60 Hz. The UGREEN USB-C Dual HDMI Hub lets you mirror or extend across two monitors—perfect for designers, gamers, coders, and power users who demand crystal-clear, high-refresh visuals.

⚡ PD 100W Fast Charging

Stay fully powered while working. Thanks to Power Delivery 3.0 (100 W max), the UGREEN USB-C Dual HDMI Hub charges your laptop safely and efficiently while all other ports remain active.

🌐 Gigabit Ethernet Port

Enjoy wired network speeds up to 1000 Mbps for stable, lag-free video calls, gaming, and large file transfers.

🔌 10-in-1 Multifunction Expansion

Everything you need in one hub:

• 2 × HDMI (8K + 4K)
• 3 × USB-A 3.0 (5 Gbps)
• 1 × USB-C PD Charging Port (100 W)
• 1 × USB-C Data Port (5 Gbps)
• 1 × RJ45 Ethernet (1000 Mbps)
• 1 × SD Card Slot
• 1 × TF Card Slot

⚙️ SuperSpeed USB 3.0 Ports

Transfer data at up to 5 Gbps—10× faster than USB 2.0. Ideal for external drives, flash storage, and keyboards.

📸 SD/TF Card Reader

Access media files instantly from cameras or drones. Supports cards up to 2 TB—perfect for creators on the move.

🧳 Compact & Travel-Ready Design

A space-gray aluminum finish with enhanced heat management keeps the UGREEN USB-C Dual HDMI Hub cool under load. Lightweight, durable, and ready for travel.

📦 Specifications

FeatureDetailsBrandUGREENModelUSB-C Dual HDMI HubPorts2 × HDMI, 3 × USB-A 3.0, 1 × USB-C PD 100 W, 1 × USB-C Data, 1 × RJ45, 1 × SD, 1 × TFHDMI Output8K @ 30 Hz / 4K @ 60 HzEthernet Speed10/100/1000 MbpsTransfer SpeedUSB 3.0 up to 5 GbpsPower DeliveryUp to 100 WMaterialAluminum AlloyCompatibilitymacOS, Windows, Chrome OS, iPadOSWarranty24-Month UGREEN Quality Guarantee

💡 Why Choose UGREEN

UGREEN has built its reputation on innovation, reliability, and design excellence. The UGREEN USB-C Dual HDMI Hub combines cutting-edge performance with sleek craftsmanship, making it the perfect choice for students, creators, and professionals who need fast, reliable connectivity on any device.

Simplify your workflow and experience the next generation of USB-C expansion with UGREEN — smart power for modern workspaces.

🚀 Upgrade Your Setup Today

✅ Dual HDMI 8K/4K Ultra HD output

✅ PD 100W super-fast charging

✅ 10-in-1 multifunction expansion

✅ Gigabit Ethernet + 5 Gbps USB 3.0

✅ Premium aluminum, travel-ready design

Order now and experience the UGREEN USB-C Dual HDMI Hub — where innovation meets performance.

⚙️ Important Note

This page features model 2 HDMI 10-in-1 8K (15534).

For other models, see the SKU chart or contact UGREEN Support.

There are 13 hub variations available under this listing — please confirm your model before purchase.

10 Ports Expansion

1*8K@30Hz HDMI2 + 1*4K@60Hz HDMI1 + 1*1000Mbps RJ45 + 1*100W PD + SD&TF + 1*USB-A 3.0 + 1*USB-C 3.0 + 2*USB-A 2.0Dual 4K@60Hz Display

Windows users can connect a single monitor up to 8K@30Hz resolution via HDMl2 port. For anyone looking to add dual displays, this HUB allows dual displays at 4K@60Hz max via dual HDMl ports.Multiple Display Modes

*Notice: macOS doesn't support Multi-Stream Transport(MST).

Due to the limitation of macOS, all extended monitors will display the same content.

8K@30Hz Single Display

HDMI2 Port, support HDMI2.1, 8K@30Hz Max, backward compatible with 4K@120/60/30Hz.Gigabit Ethernet Speed

1000Mbps faster and more efficient

PD 100W Fast Charge

Support for 85W pass-through charging over the 100W USB-C PD port allows for quick laptop charging.

USB3.0 5Gbps Transfer

1*USB-A 3.0 + 1*USB-C 3.0 + 2*USB-A 2.0.

Connect to Mouse, Keyboard, U Disk, Printer, Hard disk, etc.

Transfer 1G file in 3 seconds.104MB/s. SD/TF Card Reader

Reading 2 cards at the same timeVideo Editor

Supports powerful content reaction. Dual 4K@60Hz display extended makes editing multiple video streams easier.

Programmer

Turns a usb c device into a powerful workspace. You're ready to create, code, and collaborate.

Office Staff

Allows staff to extend two screens,meeting and working simultaneously to increase productivity.

Widely Compatible with Windows, macOS, iOS, Android, Linux...Small Size, Easy to Carry

Aluminum Alloy Metal Shell

The HUB has strong heat dissipation due to its aluminum alloy case, which is better than plastic for conducting heat away from electronic components and circuitry.Internationally Certified Quality Exceeds Industry Standards

Tested to the strictest standards and fully certified for quality and safety you can trust.

Compatible List(Partial)

This product can be applied to all the following devices. For other specific models or systems, please check whether the USB C port of your laptop supports video output, PD power supply, and data synchronization, also you could confirm it with us.

Laptops/Computers/Tablet/Game Console

For Apple:

For MacBook Pro M4 / M3 / M2 2022/ M1 2021/ M1 2020/ 2019/ 2018/2017/2016

For MacBook Air M3 / M2 2022/ M1 2020 / 2020 TB 3/ 2019/ 2018 / 2017

For Mac Mini M4 / M2 / M1

For iMac M4 2024 / M3 2023 / M1 2021, 2020 / 2019 / 2017(TBT3 Ports)

For iPad:

For iPad Pro 2024 M4, 2022 M2 (12,9 inch, 6th), 2021 M1/ 2018, 2019, 2020 (12,9 inch, 5th)

For iPad Pro 2021 M1 / 2018, 2019, 2020 (11 inch, 3th)

For iPad air 2024 M2 / 2022 M1 / 2020 (10.9 inch)

For Lenovo Yoga5 Pro/Yoga 900 13'/Yoga 6 Pro/for ThinkPad X1 Carbon/Yoga/Air 12/Lenovo E490

For Dell G3/G5/G7 series/Inspirion 5000/Inspirion 7000/XPS13/XPS15

For Huawei MateBook X/Matebook X Pro / Matebook E, MateBook 13/13s/14/14s/16, MatePad/MatePad Pro 10.8/12.6 inches P50/50Pro

For HTC 10

For Xiaomi Air 12.5/13.3-inch/Pro 15 (Enhanced Edition).

For ASUS Lingyao X Series/U4100UN/U5100UQ/ROG series/Zenbook 3/U306/U4100

For Razer Blade, Blade Stealth

For Microsoft Surface Pro 11/10/X/9/8, Surface Laptop 3, Surface Book 3/2, Surface Go 4/3

For Nintendo Switch, Steam Deck, ROG Ally/X, LEGION Go.

For Google Chrome Book Pixels/Pixels book pen

For Google Chromecast 4: When connecting to Google Chromecast 4, you can use the product's USB port, network port and SD/TF card reader porTt, but does not support HDMI port. And when the product is connected to Google Chromecast 4, it must be powered through the PD port.

Smartphones

For iPhone: iPhone16/15 series

For Samsung:

The Models which works DEX Mode: S8/S8+, S9/S9+, S10/S10+, S20/S20+, S20 Ultra 5G, S21, S22, S23, S24, S25

Note 9, Note10/Note10+/Note10+ 5G, Note 20/Note 20 5G/Note 20 Ultra/Note 20 Ultra 5G)

For HUAWEI Mate 70/60/50/40/30/20/10 series, Pura 70 series, P60 Series, P40/40Pro, P30/30Pro, P20/20Pro

For HONOR 30/30 Pro/30 Pro+/V30/V30 Pro/20S/Note 10

For Oneplus 8/8 Pro/8T Pro

Product Specification

Brand: UGREEN

Model: CM639

Product name: 10-in-1 Multifunction USB C HUB

HDMI2 port: 8K30Hz Max.

HDMI1 port: 4K60Hz Max.

RJ45 port: 1000/100/10 Mbps

SD&TF port: 104MB/s

PD port : PD 100W (PD3.0 20V5A)

Data Transfer ports : 1xUSB-A 3.0+ 1xUSB-C 3.0+ 2xUSB-A 2.0

USB 3.0 ports : 5Gbps, backward compatible with USB 2.0

Supported system : Windows 11/10; Linux; mac OS; iOS; Android; Chrome OS; iPad OS

Material: Aluminum alloy metal shell

Color: Silver

Packaging: UGREEN retail box

Packaging

Questions & Answers

★Q1: How can I troubleshoot if my dual monitors cannot achieve 4K@60Hz simultaneously?

A1: This might be due to the bandwidth limitation of the laptop. You can take the following steps:

1). Ensure that your laptop supports DP 1.4 first.

2). Lower your monitor's resolution or refresh rate.

3). Replace another high-standard HDMI cable.

★Q2: What can I do if my monitor cannot reach 8K@30Hz?

A2: 1). Ensure that the monitor is connected to the HDMI2 port alone.

2). Check if your laptop supports both DP1.4 and DSC compression. If only DP1.4 is supported while DSC compression is not, it can only reach 4K@60Hz at max.

★Q3: When HDMI2 is connected, why does the laptop freeze when the resolution is adjusted to 8K@30Hz and HDR is turned on?

A3: This is related to the memory of the graphics card. Generally, it is not recommended to enable HDR at 8K@30Hz. In addition, if there is a freeze at 4K@60Hz, please also turn off HDR.

★Q4: When I connect to 2 monitors with Mac, why do both monitors show the same image?

A4: When Mac is connected to dual monitor devices, the docking station can only support extending one display, and another display can only copy the display you extended, which means it only supports AAA or ABB.