UGREEN CM481 USB-C to 7-Port USB-A 3.0 Powered Hub – 5Gbps, 12V/2A EU Adapter – Gray | 90307

Description

The UGREEN CM481 90307 7-Port USB 3.0 Hub is a powered USB expansion hub designed to turn a single USB connection into seven USB-A 3.0 ports for connecting multiple peripherals and storage devices simultaneously.

It supports data transfer speeds up to 5Gbps and includes a 12V/2A external power adapter, providing stable power when several devices or power-demanding peripherals such as external HDDs are connected. Each USB port also features its own independent ON/OFF switch and LED indicator.

Key Features

• 7-Port Powered USB 3.0 Hub
• 7 × USB-A 3.0 ports
• USB-C upstream/host connection
• Up to 5Gbps data transfer
• Backward compatible with USB 2.0 / USB 1.1
• 7 independent ON/OFF switches
• 7 individual LED indicators
• BC 1.2 charging support on ports 4–7
• External 12V / 2A power supply
• 24W power adapter
• EU power plug
• Aluminum alloy construction
• Plug-and-play operation
• Suitable for external HDDs, SSDs & USB peripherals
• Model: CM481
• SKU: 90307
• Color: Gray / Dark Gray

7x USB-A 3.0 Ports

The CM481 provides seven USB-A 3.0 ports, significantly expanding the number of USB devices you can connect to a computer.

USB Connectivity

• USB-A Outputs: 7
• USB Standard: USB 3.0
• Maximum Data Rate: 5Gbps
• USB 2.0 Compatible: Yes
• USB 1.1 Compatible: Yes

You can connect devices such as:

• External SSDs
• External HDDs
• USB flash drives
• Keyboards
• Mice
• Gaming controllers
• Printers
• Webcams
• USB microphones
• Speakers
• Card readers
• Cameras

The 5Gbps figure is the theoretical maximum USB 3.0 data rate; actual performance depends on the host and connected devices.

Individual ON/OFF Switches

A major advantage of the UGREEN CM481 is that each of its seven USB ports has an independent power switch.

Per-Port Controls

• 7 × ON/OFF Buttons
• 7 × LED Indicators
• Independent control for each USB port

This means you can disable a connected USB device without physically unplugging it.

For example:

External HDD connected → Press button OFF → Port disabled

Press the button again when you need to use the device.

The blue LED associated with each port indicates whether that port is active.

Powered USB Hub – 12V/2A

Unlike basic bus-powered USB hubs, the CM481 includes an external power supply.

Power Specifications

• Power Input: DC
• Voltage: 12V
• Current: 2A
• Maximum Adapter Power: 24W
• DC Connector: 5.5mm
• Power Adapter: Included
• Plug Type: EU

The external power supply improves stability when several USB devices are connected simultaneously, especially power-demanding devices such as external hard drives.

BC 1.2 Charging Support

USB ports No. 4 through No. 7 support the BC 1.2 charging protocol.

Charging

• Ports 1–3: Standard USB/data
• Ports 4–7: Data + BC 1.2 charging support
• BC 1.2: Yes

This allows compatible mobile devices and accessories to receive higher charging current than a basic USB data port can normally provide.

Stable Connection for External Drives

The powered design makes the CM481 particularly useful when connecting multiple storage devices.

For example:

PC → CM481 → External HDD + SSD + Flash Drive + Keyboard + Mouse + Controller + USB Receiver

The included 12V/2A adapter provides additional power rather than relying entirely on the computer's USB connection.

USB-C Host Input

The hub itself has a USB-C female upstream input used to connect the hub to the host device with the supplied data cable.

Host Interface

• Hub Input: USB-C Female
• Function: Data connection to host
• Maximum Speed: 5Gbps

Importantly, this USB-C input is for the host data connection, not USB-C Power Delivery charging. The manual specifically warns against connecting this port to a charger or other power source.

Aluminum Alloy Construction

The hub features an aluminum alloy shell, providing a durable desktop-oriented construction while helping with heat dissipation.

Dimensions

• Length: 114mm
• Width: 48mm
• Height: 23mm
• USB Data Cable: Approximately 1 meter

Its compact form makes it suitable for both permanent workstation setups and portable use.

Plug-and-Play

The CM481 is designed for plug-and-play operation with major computer operating systems.

Compatible systems include:

• Windows
• macOS
• Linux
• ChromeOS

The manual also lists compatibility with supported iOS/iPadOS and Android host devices.

Specifications

• Brand: UGREEN
• Model: CM481
• SKU / Part Number: 90307
• Product Type: Powered USB 3.0 Hub
• Host Input: 1 × USB-C Female
• USB Outputs: 7 × USB-A 3.0
• USB Standard: USB 3.0
• Maximum Data Speed: 5Gbps
• USB 2.0 Compatibility: Yes
• USB 1.1 Compatibility: Yes
• Individual Port Switches: 7
• LED Indicators: 7
• BC 1.2 Charging: Yes, Ports 4–7
• Power Input: DC 12V
• Power Adapter: 12V / 2A
• Adapter Power: 24W
• EU Plug: Yes
• Power Adapter Included: Yes
• USB Data Cable Included: Yes
• USB-C PD Laptop Charging: No
• Plug-and-Play: Yes
• Material: Aluminum Alloy
• Dimensions: 114 × 48 × 23mm
• Color: Gray / Dark Gray

Port Summary

Package Contents

• UGREEN CM481 7-Port USB 3.0 Hub
• USB-C data cable – approximately 1m
• 12V/2A power adapter
• EU plug
• User documentation

Important Note

The CM481's USB-C input is not a USB-C Power Delivery charging port. It is used to connect the hub to the host for USB data transmission. Power for the hub comes from the dedicated 12V/2A DC adapter.

The hub also does not provide:

• HDMI
• DisplayPort
• Ethernet
• SD/microSD reader
• USB-C laptop charging

Its primary purpose is high-capacity USB-A expansion with external power.

Best For

• Desktop PCs
• Laptops
• Gaming PCs
• External HDDs
• External SSDs
• USB Flash Drives
• Keyboards & Mice
• Gaming Controllers
• USB Receivers
• Printers
• Webcams
• USB Audio Devices
• Office Workstations
• Gaming Setups
• Multiple USB Devices

Why Choose the UGREEN CM481 90307?

• Expands a computer connection into 7 USB-A 3.0 ports.
• Supports data transfer speeds up to 5Gbps.
• Includes a 12V/2A external power adapter for stable multi-device operation.
• Each port has an independent ON/OFF switch.
• Seven LED indicators clearly show active ports.
• Ports 4–7 support BC 1.2 charging for compatible devices.
• Aluminum alloy construction provides a durable desktop design.
• Ideal for users who need to connect several external drives and USB peripherals simultaneously.
• The combination of 7 USB 3.0 ports, 5Gbps data transfer, individual switches, BC 1.2 charging, and a 12V/2A powered design makes the UGREEN CM481 90307 an excellent USB expansion solution for demanding desktop and workstation setups.