UGREEN CM219 4-Port USB 3.0 Hub with USB-C Host – 5Gbps, Auxiliary Power – Gray | 50985B

Description

The UGREEN CM219 50985B 4-Port USB 3.0 Hub is a compact USB-C expansion hub designed to turn a single USB-C connection into four USB-A 3.0 ports for connecting storage devices and everyday peripherals.

With transfer speeds up to 5Gbps, it is suitable for external HDDs and SSDs, USB flash drives, keyboards, mice, printers, and other USB accessories. It also features a separate auxiliary power input to provide additional power when using demanding storage devices.

Key Features

• 4-Port USB 3.0 Hub
• USB-C host connection
• 4 × USB-A 3.0 ports
• Up to 5Gbps data transfer
• Backward compatible with USB 2.0 / USB 1.1
• Connect up to 4 USB devices simultaneously
• Auxiliary power input for power-demanding devices
• Suitable for external HDDs & SSDs
• LED status indicator
• Multi-layer shielding for stable transmission
• Plug-and-play operation
• Compact & portable design
• Compatible with Windows, macOS & Linux
• Model: CM219
• SKU: 50985B
• Color: Gray / Space Gray

USB-C to 4x USB-A Expansion

The CM219 expands a compatible USB-C port into four full-size USB-A ports.

Connectivity

• Host Connector: USB-C
• Output Ports: 4 × USB-A
• USB Standard: USB 3.0
• Maximum Transfer Rate: 5Gbps

For example:

USB-C Laptop → UGREEN CM219 → External SSD + Keyboard + Mouse + Flash Drive

All four USB ports can be used simultaneously.

USB 3.0 – Up to 5Gbps

The four USB-A ports support USB 3.0 data transfer speeds up to 5Gbps.

• USB 3.0: Up to 5Gbps
• USB 2.0: Up to 480Mbps
• USB 1.1: Backward compatible

This makes the hub suitable for transferring large files using compatible external drives and flash storage.

Actual transfer speed depends on the host device, storage performance, and how many devices are operating simultaneously.

Connect Up to 4 USB Devices

The UGREEN CM219 can be used with compatible:

• External SSDs
• External HDDs
• USB flash drives
• Keyboards
• Mice
• Printers
• USB headphones
• USB microphones
• Card readers
• Cameras
• Controllers
• USB receivers
• Other USB peripherals

Auxiliary Power Input

The CM219 includes an auxiliary power connection for additional power when using demanding USB peripherals.

This is particularly useful with:

• External HDDs
• External SSDs
• Multiple storage devices
• Other high-power USB peripherals

The power adapter/cable is sold separately according to the available product documentation.

Important

The auxiliary connection is designed to power the hub and connected peripherals. It is not USB-C Power Delivery for charging the connected laptop.

LED Indicator

An integrated LED provides a quick visual indication that the hub is connected and operating.

• LED Indicator: Yes
• Function: Connection / power status

The hub also incorporates shielding intended to improve transmission stability and reduce interference.

Plug-and-Play

The CM219 is designed for simple plug-and-play operation with compatible operating systems.

Operating System Compatibility

• Windows
• macOS
• Linux

No specialized driver is normally required for basic USB hub functionality.

Specifications

• Brand: UGREEN
• Model: CM219
• SKU / Part Number: 50985B
• Product Type: 4-Port USB Hub
• Host Connection: USB-C
• USB Outputs: 4 × USB-A
• USB Standard: USB 3.0
• Maximum Data Transfer: 5Gbps
• USB 2.0 Compatible: Yes
• USB 1.1 Compatible: Yes
• Auxiliary Power Input: Yes
• Laptop Power Delivery: No
• LED Indicator: Yes
• Simultaneous USB Devices: Up to 4
• External HDD Support: Yes
• External SSD Support: Yes
• Plug-and-Play: Yes
• Windows Compatible: Yes
• macOS Compatible: Yes
• Linux Compatible: Yes
• HDMI: No
• Ethernet: No
• SD / microSD Reader: No
• Color: Gray / Space Gray

Port Summary

Important Charging Note

The phrase “with Charging Port” can be misleading for this product.

The additional power connection is intended to provide extra power to the hub and attached USB peripherals, particularly HDDs and SSDs. It is not designed as a USB-C PD pass-through port for charging a MacBook or laptop.

The four USB-A ports are primarily intended for data transfer and peripherals, not dedicated high-speed device charging.

Best For

• MacBook Pro / MacBook Air
• USB-C Windows Laptops
• Chromebooks
• USB-C Tablets
• External SSDs
• External HDDs
• USB Flash Drives
• Keyboards & Mice
• Printers
• Controllers
• USB Receivers
• Office Workstations
• Home Use
• Travel

Why Choose the UGREEN CM219 50985B?

• Expands one USB-C connection into four USB-A ports.
• Supports USB 3.0 transfer speeds up to 5Gbps.
• Allows up to four compatible USB devices to be connected simultaneously.
• Auxiliary power support helps when using demanding external HDDs and SSDs.
• Backward compatible with older USB peripherals.
• LED indicator provides convenient connection-status information.
• Plug-and-play support across Windows, macOS, and Linux.
• Compact design makes it convenient for laptops, office setups, and travel.
• The combination of 4 USB 3.0 ports, 5Gbps data transfer, USB-C host connectivity, and auxiliary power support makes the UGREEN CM219 50985B a practical hub for expanding USB connectivity.