UGREEN 7-Port USB 3.0 Hub UK Power adaptor – CM481

The UGREEN CM481 7-Port USB 3.0 Hub is a powered desktop USB expansion solution designed for users who need to connect several USB devices to one computer simultaneously.

It provides seven USB 3.0 ports, each capable of data transfer rates up to 5Gbps. Furthermore, its external power supply helps provide stable operation when several peripherals are connected.

Seven USB 3.0 Ports

The CM481 gives you 7 × USB-A 3.0 ports, making it suitable for connecting multiple devices such as external HDDs, portable SSDs, flash drives, keyboards, mice, printers, cameras and card readers.

This makes it especially useful for desktop workstations and laptops with limited USB connectivity.

Up to 5Gbps Data Transfer

Each USB 3.0 interface supports a theoretical data rate of up to 5Gbps. USB 3.0 is also backward compatible with older USB 2.0 and USB 1.1 peripherals.

Therefore, the hub can accommodate both newer high-speed storage devices and older USB accessories.

Individual On/Off Switches

A major advantage of the CM481 is the individual control switch for each USB port.

Instead of physically disconnecting a device whenever you don’t need it, you can simply switch off its corresponding port. Each port also includes a blue LED indicator to show its operating status.

BC 1.2 Charging Support

USB ports 4 through 7 support the BC 1.2 charging protocol, with documented charging output of up to 7.5W on supported devices.

This means the CM481 can provide charging support for compatible USB devices in addition to normal data connectivity.

However, it should not be confused with a modern USB-C PD fast charger.

Powered USB Hub

The documented CM481/90306–90307 family uses a 12V/2A (24W) external power supply. This provides additional power for the hub and connected peripherals.

A powered hub is particularly useful when connecting devices with greater power requirements, such as external hard drives.

UK Power Adapter

For the UK version, the package includes a UK-style power adapter. This makes it convenient for use in Kenya without requiring a plug converter. Kenyan listings specifically identify the CM481/UG-90306 as the UK power-adapter version.

USB-C Host Interface

The current documented CM481 version uses a USB-C female host input and includes a USB-C connection cable. The USB-C interface is used to connect the hub to the host computer.

Importantly, this USB-C host port should not be connected to a charger. Power for the hub comes through the dedicated DC input.

Suitable for External HDDs and SSDs

Because the CM481 has an external power supply and USB 3.0 connectivity, it is particularly useful for external storage.

You can connect multiple compatible storage devices for file transfers, backups and everyday data access without constantly swapping USB connections.

Built-In Protection

The CM481 incorporates protection against conditions such as over-voltage, over-current, short circuits and excessive temperature.

Aluminium Alloy Construction

The CM481 uses an aluminium-alloy housing, which provides a more durable construction while also helping with heat dissipation.

Wide Compatibility

The CM481 can be used with common computer peripherals including keyboards, mice, flash drives, printers, external drives and cameras. Documentation lists compatibility with major operating systems including Windows, macOS and Linux.

Key Features

• 7 × USB-A 3.0 ports
• Up to 5Gbps data transfer
• Backward compatible with USB 2.0/1.1
• Individual on/off switch for each port
• Individual LED status indicators
• Ports 4–7 support BC 1.2 charging
• Up to 7.5W charging on supported charging ports
• 12V/2A (24W) external power
• UK power adapter on UK version
• USB-C host interface on current documented version
• Aluminium-alloy housing
• Over-voltage protection
• Over-current protection
• Short-circuit protection
• Over-temperature protection
• Plug-and-play operation

Technical Specifications