UGREEN CM475 USB 3.0-to 3*USB HUB + Gigabit Converter

The UGREEN CM475 USB 3.0 to 3-Port USB Hub + Gigabit Ethernet Converter is a practical 4-in-1 connectivity solution for expanding the capabilities of laptops and desktop computers.

It combines three high-speed USB ports with a Gigabit Ethernet interface, allowing users to connect USB accessories while simultaneously accessing a fast and reliable wired network.

1. 4-in-1 Connectivity

The UGREEN CM475 combines:

3 × USB 3.0 ports
1 × RJ45 Gigabit Ethernet port

This eliminates the need to carry separate USB hubs and Ethernet adapters.

For example, you can connect a keyboard, mouse and external drive to the three USB ports while simultaneously connecting your computer to a router or network switch through Ethernet.

2. Three High-Speed USB 3.0 Ports

The three USB 3.0 ports can accommodate devices such as:

• External hard drives
• Portable SSDs
• USB flash drives
• Keyboards and mice
• Webcams
• Printers
• Card readers
• USB wireless receivers
• Other compatible USB accessories

This makes the CM475 particularly useful for laptops with limited built-in USB connectivity.

3. Up to 5Gbps USB Data Transfer

USB 3.0 provides a theoretical transfer rate of up to 5Gbps, making the CM475 suitable for transferring large files to and from compatible USB storage devices.

For comparison:

USB 2.0: Up to 480Mbps
USB 3.0: Up to 5Gbps

Actual transfer speeds depend on the computer, storage device and other connected equipment.

4. Gigabit Ethernet Connection

The built-in RJ45 port supports automatic negotiation between:

10Mbps / 100Mbps / 1000Mbps

Therefore, the CM475 can provide up to a Gigabit Ethernet link when connected to compatible Gigabit networking equipment.

This is especially useful for computers without a built-in RJ45 Ethernet port.

5. More Stable Alternative to Wi-Fi

A wired Ethernet connection can provide a consistent network link where Wi-Fi is congested, unstable or has weak coverage.

This makes the CM475 useful for activities such as video conferencing, accessing network storage, downloading large files, office applications and other situations where a reliable network connection is important.

Actual internet speed will still depend on your internet package, router, switch, cabling and network conditions.

6. USB-C Auxiliary Power Port

The documented CM475 version includes a USB-C female auxiliary power input rated at DC 5V/2A. This can provide additional power when higher-power USB peripherals are connected.

This power input should not automatically be advertised as laptop USB-C PD charging. Some online CM475 listings describe different revisions with PD functionality, so the exact SKU should be verified before claiming PD passthrough.

7. Excellent for External Storage

With its USB 3.0 connectivity, the CM475 is suitable for external HDDs and SSDs.

For example:

Computer → CM475 → External SSD

You can transfer documents, photos, videos, backups and other large files while keeping your other USB accessories connected.

8. Plug and Play Operation

On modern supported operating systems, installation is generally straightforward. The CM475 manual lists support for Windows, macOS and Linux and notes driver-free Ethernet operation on Windows 8/8.1/10 and macOS. Older Windows versions may require a driver.

9. Ideal for Office Workstations

The CM475 is especially useful in an office where a laptop needs to function as a desktop workstation.

For example:

USB Port 1 → Keyboard
USB Port 2 → Mouse
USB Port 3 → External Drive
RJ45 → Office Network

One compact adapter therefore provides connectivity for several essential office devices.

10. Compact and Portable

Its compact design makes the CM475 suitable for mobile professionals, technicians and users who regularly move between workstations.

Instead of carrying a separate USB hub and Ethernet adapter, the CM475 combines both functions into one device.

Key Features

• 4-in-1 USB and Ethernet adapter
• 3 × USB 3.0 ports
• Up to 5Gbps USB transfer rate
• 1 × RJ45 Gigabit Ethernet port
• Supports 10/100/1000Mbps Ethernet
• Connect USB devices and Ethernet simultaneously
• Suitable for HDDs, SSDs and flash drives
• Supports keyboards, mice, printers and other peripherals
• Auxiliary power support on applicable versions
• Plug-and-play on supported operating systems
• Compatible with Windows, macOS and Linux
• Compact and portable design

Technical Specifications

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