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UGreen  |  SKU: 507965

UGREEN 11 in 1 USB-C Docking Station 4K@60Hz HDMI, 100W PD, Gigabit Ethernet (CM639 - 45520)

14.9 KD

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UGREEN 11-in-1 USB-C Docking Station — Model CM639 (SKU 45520) is UGREEN's Revodok-series flagship compact hub — a single-cable workstation expansion solution that transforms one USB-C port into 11 fully functional interfaces covering display output, high-speed data transfer, wired networking, card reading, audio output, and 100W pass-through charging simultaneously. Engineered for professionals, content creators, remote workers, and power users who demand comprehensive connectivity without compromise, the CM639 supports 4K@60Hz HDMI display, 1080p@60Hz VGA legacy output, 10Gbps USB-C and USB-A data ports, Gigabit Ethernet, SD/TF card reading at up to 170MB/s, a 3.5mm audio jack, and USB-C PD 3.0 charging at up to 100W — all operational concurrently from a single USB-C host connection.

The CM639 is built on the premise that a modern laptop with a single or limited USB-C port should be capable of full multi-peripheral workstation operation without a cluttered collection of individual adapters. The premium aluminium casing provides structural durability, efficient heat dissipation during intensive multi-port use, and a professional desktop-quality appearance that matches the high-end devices it connects to. The hub is plug-and-play across Windows, macOS, and Linux — no driver installation required for most functions. It is compatible with any laptop, tablet, or USB-C device that supports DisplayPort Alt Mode for video output, making it universally applicable across the MacBook Pro, MacBook Air, iPad Pro, Dell XPS, HP Spectre, Samsung Galaxy Book, and the broader USB-C laptop ecosystem. The HDMI and VGA outputs operate in mirror mode on Windows and macOS — both screens display the same image simultaneously, making the CM639 the definitive solution for conference room presentations, classroom instruction, dual-display office setups, and professional workstation expansion from a single compact unit.


Technical Specifications

Port Overview
Model CM639
SKU 45520
Host Input 1× USB-C (connects to laptop / tablet)
Total Ports 11 Ports
Build Material Premium Aluminium Alloy
Compatibility Windows / macOS / Linux — Plug & Play, No Drivers Required
Warranty 1 Year
Display Output
HDMI Output 1× HDMI — Up to 4K@60Hz
VGA Output 1× VGA — Up to 1080p@60Hz
Display Mode Mirror Mode — HDMI and VGA mirror the same image (Windows & macOS)
Use Cases Presentations, Extended Desktops, Meetings, Content Creation
USB Data Ports
USB-C Data Port 1× USB-C — Up to 10Gbps (Data Only)
USB-C PD Charging Port 1× USB-C — PD 3.0 Up to 100W (Charging Only — No Data / Video)
USB-A High-Speed Port 1× USB-A — Up to 10Gbps
USB-A Standard Port 1× USB-A — Up to 5Gbps
Networking, Card Reading, and Audio
Ethernet 1× RJ45 Gigabit — 10/100/1000Mbps Auto-Negotiation
SD Card Slot 1× SD — SD 3.0 Standard, Up to 170MB/s
TF (microSD) Card Slot 1× TF / microSD — SD 3.0 Standard, Up to 170MB/s
Audio 1× 3.5mm AUX — Earphones, Headphones, and Speakers

Key Features

  • 11-in-1 Full Workstation Expansion — One USB-C Cable, Every Connection: The CM639 expands a single USB-C port into 11 simultaneously usable interfaces — 4K HDMI display, 1080p VGA display, USB-C 10Gbps data, USB-C 100W PD charging, USB-A 10Gbps data, USB-A 5Gbps data, Gigabit Ethernet, SD card reader, TF card reader, 3.5mm audio, and USB-C host input — all active concurrently through a single cable connection. This eliminates the 4–6 individual adapters that professionals with port-limited laptops would otherwise need to carry and manage separately, replacing them with a single organised desktop hub that requires one cable swap to connect and disconnect the entire peripheral setup
  • 4K@60Hz HDMI Output — Ultra-Sharp 4K Visuals at Full 60Hz Refresh: The HDMI port delivers 4K resolution at the full 60Hz refresh rate — not the 4K@30Hz that lower-specification hubs provide. 60Hz at 4K is the threshold that makes 4K displays feel smooth and responsive for desktop productivity, video editing preview, and general multitasking. At 30Hz, cursor movement and window animations produce visible stuttering that makes sustained working uncomfortable. The CM639's 4K@60Hz output ensures the full visual quality of a 4K monitor is delivered smoothly — every UI element, text, icon, and video frame rendered at the display's native quality without frame rate compromise
  • VGA Output — 1080p@60Hz Legacy Display and Projector Support: The 1080p@60Hz VGA output enables connection to older monitors, conference room projectors, classroom displays, and any VGA-equipped screen that cannot accept HDMI or USB-C input. Many professional environments — conference rooms, training facilities, meeting spaces, and academic institutions — still use VGA-only projectors and displays. The CM639's VGA port means laptop users are never without display output capability regardless of the display or projector type available at their destination, making the hub a genuinely universal presentation tool
  • Mirror Mode Display — HDMI + VGA Simultaneously for Presentations: When both HDMI and VGA are connected simultaneously, both outputs display the same image in mirror mode — the presenter sees the same content on both the connected laptop screen and the projection surface. This is the standard configuration for conference room presentations, classroom instruction, and client-facing demonstrations where the speaker needs to see the same content the audience sees without additional display configuration. The mirror mode operates automatically on both Windows and macOS without requiring manual display arrangement
  • 10Gbps USB-C and USB-A Data Ports — Professional-Grade Transfer Speed: The CM639's USB-C data port and USB-A high-speed port both operate at 10Gbps — the USB 3.2 Gen 2 specification that is twice as fast as the USB 3.0 standard 5Gbps. At 10Gbps, a 10GB video file transfers in approximately 8 seconds; a 100GB project folder in under 90 seconds. This speed is critical for creative professionals working with large RAW photo collections, 4K video projects, and large external SSD archives where transfer time directly impacts workflow efficiency. The additional 5Gbps USB-A port handles standard peripherals — keyboards, mice, webcams, flash drives — that do not require maximum transfer speed
  • 100W USB-C Power Delivery — Full-Speed Laptop Charging While Using All Ports: The dedicated USB-C PD 3.0 port supports up to 100W pass-through charging — the wattage required by most modern high-performance laptops for full-speed charging, including MacBook Pro 16", Dell XPS 15, and similar power-hungry devices. The PD port operates independently from all data and display functions — connecting a 100W power adapter to the PD port charges the laptop at maximum speed simultaneously while all 11 hub ports are in active use. This eliminates the performance-limiting compromise of underpowered hubs that reduce charging speed under load
  • Gigabit Ethernet — 10/100/1000Mbps Wired Network with Auto-Negotiation: The RJ45 Gigabit Ethernet port provides wired internet at up to 1,000Mbps with automatic speed negotiation to match the network infrastructure available — 10Mbps, 100Mbps, or 1,000Mbps detected and selected automatically at connection. Wired Gigabit Ethernet delivers lower latency, more consistent throughput, and greater reliability than Wi-Fi — critical advantages for video conferencing where packet loss causes call quality degradation, for large file uploads and downloads where consistent speed is required, and for network-sensitive tasks like VPN connections, cloud sync, and remote desktop sessions that suffer significantly on congested Wi-Fi
  • Dual SD/TF Card Reader — SD 3.0 at Up to 170MB/s: The CM639 includes separate dedicated SD and TF (microSD) card slots that can both operate simultaneously — reading two cards at the same time without requiring one to be ejected before the other is inserted. Both slots support SD 3.0 at up to 170MB/s transfer speed — fast enough to transfer a 1GB RAW photo burst in approximately 6 seconds, and 1GB of 4K footage in approximately 6 seconds. Photographers, videographers, and content creators who regularly transfer large card volumes will use both slots simultaneously to halve the total transfer time compared to sequential single-slot transfers
  • 3.5mm Audio Jack — Universal Audio Output for Headphones and Speakers: The standard 3.5mm AUX port provides audio output compatible with any wired earphones, headphones, and powered speaker system — a critical functional addition for modern thin laptops that have eliminated the 3.5mm jack in favour of USB-C-only audio. The audio port enables direct headphone connection for video calls, music, and video audio monitoring without requiring a separate USB DAC or wireless audio pairing, maintaining consistent, wired audio quality in any working environment
  • Premium Aluminium Alloy Construction — Heat Dissipation and Durability: The CM639's housing is fabricated from premium aluminium alloy — a material chosen for its significantly superior thermal conductivity compared to plastic, allowing heat generated by the hub's internal chipset during intensive multi-port use to dissipate passively through the casing without requiring active cooling fans. The aluminium construction also provides scratch resistance and mechanical durability that withstands the physical demands of daily desk use, travel, and repeated connection and disconnection cycles across years of professional use
  • Plug-and-Play Across Windows, macOS, and Linux: The CM639 operates without driver installation on Windows 10/11, macOS, and major Linux distributions — connect the USB-C cable to the host laptop and all ports are immediately available. No setup wizard, no compatibility check, no software download required. This plug-and-play universal compatibility is critical for professionals who use the hub across multiple devices or in environments where installing additional software is restricted by IT policy

User Benefits

  • One Cable In, Full Workstation Out — Every Day: For professionals who use an external monitor, wired internet, external storage, and a headset at their desk, the CM639 replaces the morning ritual of plugging in 4–6 separate adapters with a single USB-C cable connection. Pick up the laptop and all connections disconnect simultaneously; sit down and plug in one cable to restore the complete workstation setup — monitor, internet, storage, audio, and charging simultaneously reconnected in under 3 seconds
  • Present Anywhere — HDMI Rooms and VGA Rooms: The combination of 4K HDMI and 1080p VGA in a single hub means the CM639 handles any presentation environment without requiring advance knowledge of the room's display infrastructure. Modern conference rooms with HDMI displays and older spaces with VGA projectors are both covered by the same single hub — one device replaces the need to carry both an HDMI adapter and a VGA adapter separately
  • Never Run Out of Battery — Even Under Full Load: The 100W PD port charges the laptop at full speed regardless of how many other ports are simultaneously active — 4K display connected, Ethernet running, USB devices transferring, and SD card reading simultaneously do not reduce the charging wattage delivered to the laptop. Professionals who have experienced hub-induced battery drain during intensive work sessions will immediately recognise the difference a dedicated 100W PD port makes to sustained all-day laptop use
  • Transfer Two Cards at Once — Cut Import Time in Half: Photographers and videographers who shoot on both a primary camera with an SD card and a secondary camera with a microSD card can insert both cards simultaneously and transfer both simultaneously — running two concurrent transfers that complete at the same time as a single card would alone. For a day of shooting that fills two 128GB cards, the dual simultaneous reader reduces import time from 25 minutes per card (50 minutes total sequential) to 25 minutes total concurrent transfer
  • Wired Internet — Stable, Low-Latency, Consistent Speed: The Gigabit Ethernet port eliminates the connection variability, congestion sensitivity, and signal dependency of Wi-Fi for users who work in shared environments with crowded wireless networks. A wired Gigabit connection delivers consistently full-speed internet access regardless of the number of wireless devices sharing the network, the distance from the router, or physical obstacles between the laptop and the wireless access point — all variables that directly degrade Wi-Fi performance in typical office and home environments
  • Audio-Capable From Any USB-C Laptop: The 3.5mm jack extends audio output capability to ultrabooks and tablets that have removed the dedicated headphone jack — Apple MacBook Pro (2021 and later has it back, but many predecessors did not), many Windows ultrabooks, and USB-C tablets that lack a 3.5mm port can all use wired headphones and earphones through the CM639's audio jack without requiring a separate USB audio adapter purchase
  • Trusted UGREEN Quality — 1-Year Warranty: UGREEN is a globally recognised accessory brand specialising in cables, hubs, and connectivity hardware with a track record of consistent performance and build quality validated across millions of users. The CM639 is backed by a 1-year manufacturer warranty covering manufacturing defects and component failure — professional-grade after-purchase coverage that reflects UGREEN's confidence in the product's long-term reliability

Complete Port Breakdown

  • 1× HDMI — 4K@60Hz Video Output
  • 1× VGA — 1080p@60Hz Video Output (Legacy Displays & Projectors)
  • 1× USB-C Data — Up to 10Gbps
  • 1× USB-C PD Charging — PD 3.0, Up to 100W (Charging Only)
  • 1× USB-A — Up to 10Gbps
  • 1× USB-A — Up to 5Gbps
  • 1× RJ45 Gigabit Ethernet — 10/100/1000Mbps
  • 1× SD Card Slot — SD 3.0, Up to 170MB/s
  • 1× TF / microSD Card Slot — SD 3.0, Up to 170MB/s
  • 1× 3.5mm AUX Audio Output
  • 1× USB-C Host Input (to Laptop)
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