UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI

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Product guide

UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI

UGREEN CM478 is a 5-in-1 USB-C hub combining HDMI, a USB-C charging input and three USB-A ports. Its single 5Gbps USB-A port handles faster transfers, while the two USB-A 2.0 ports suit lower-speed peripherals. The host device needs USB-C DisplayPort Alt Mode for video and Power Delivery for charging.

At a glance

5-in-1 layout includes HDMI, USB-C PD input and three USB-A ports.
HDMI output is listed up to 4K at 30Hz, suitable for compatible displays where 30Hz is sufficient.
One USB-A port supports 5Gbps transfers. The other two are 480Mbps ports for lower-speed peripherals.
USB-C PD input is for charging only, not data or video. The listing says a connected hub consumes 5W, leaving up to 95W for the laptop from a 100W charger.

Price

£8.47Save 35%

Reference price: ~~£12.99~~

Price checked: 12 Nov 2026

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Often bought together

UGREEN USB C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI to USB-C Adapter | 100W PD, 3 USB-A Data Ports, Aluminum Compact Multip

£10.42

Pros and cons

Pros

Adds a wired HDMI display connection and three USB-A connections through one USB-C hub.
The faster USB-A port is useful for storage devices, with two slower ports available for items such as a keyboard and mouse.
The listing specifies a 100W pass-through charging input for compatible host devices.

Cons

Only one of the three USB-A ports is specified at 5Gbps. The other two are limited to 480Mbps.
HDMI output is specified at 4K@30Hz rather than a higher refresh rate.

Technical specifications

17 specifications

Identity
Brand	UGREEN
Model	CM478

Ports and performance
Port configuration	4K HDMI port, a 100W USB-C PD port, a 5Gbps USB-A data port, and two 480Mbps USB-A ports
HDMI output	up to 4K@30Hz
USB-A 3.0 data rate	5Gbps
USB-A 2.0 data rate	480Mbps
Total USB ports	5
Hardware interface	HDMI, USB 2.0, USB 3.0, USB Type C

Charging and compatibility
USB-C PD port rating	100W
Compatible host ports	USB-C with DP Alt Mode and Power Delivery, as well as USB4 and Thunderbolt ports
Compatible devices	Hard Disk Drive, Laptops, Monitors, Smartphones, Tablets
Operating system	Multiple Operating Systems
Minimum required operating system version	Mac OS 10.15 Catalina

Physical details
Colour	Gray
Enclosure material	Aluminum
Dimensions	12.2L x 2.8W x 1.2H centimetres
Weight listed	91 Grams

What to know before buying

Listing details to confirm

The hub requires host USB-C DisplayPort Alt Mode for video and Power Delivery for charging. The USB-C PD-IN port is charging-only and cannot transfer data or video. A 100W wall charger is stated to provide up to 95W to the laptop because the hub consumes 5W. A wall charger and cable are not included. The listing gives conflicting dimensions and weights: the details section says 12.2L x 2.8W x 1.2H centimetres and 91 Grams, while the product description says 121 x 27 x12 mm and 58 g. Confirm the selected listing's physical measurements if they matter.

Who is it for?

A good fit for

Laptop users who need a compact set of HDMI and USB-A connections and can use 4K at 30Hz.
Users attaching a storage device to the 5Gbps USB-A port alongside lower-speed peripherals.
Buyers with a USB-C host that supports both DisplayPort Alt Mode and Power Delivery.

Less suited to

Anyone requiring HDMI output above 30Hz at 4K.
Users needing several high-speed USB-A ports or data access through the hub's USB-C PD input.
Hosts without USB-C DisplayPort Alt Mode for video or Power Delivery for charging.

UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 42,896 ratings

5 stars75%75%
4 stars15%15%
3 stars5%5%
2 stars2%2%
1 star3%3%

Customer feedback highlights useful connectivity, compact size and aluminium construction, with reports of good results on MacBooks and iPads. The experiences are not uniformly positive: compatibility concerns include some devices such as the M1 iPad, durability comments range from robust use to reports of failure within two months, and views on power pass-through are mixed. These points matter alongside the hub's stated host requirements and its limited 5Gbps USB-A port. The aggregate ratings are broadly favourable, but ratings alone do not identify why some customers were dissatisfied.

Positive themes

Customers report useful functionality and versatility, and praise the compact size and aluminium construction.

Negative themes

Some customers report the hub breaking after less than two months of use.

Mixed feedback

Compatibility feedback includes problems with certain devices, including the M1 iPad.
Feedback about power supply and pass-through is mixed.

Frequently asked questions

Does the UGREEN CM478 support 4K HDMI?

The listing specifies HDMI output up to 4K@30Hz. The host USB-C port must support DisplayPort Alt Mode.

Can the USB-C port transfer data?

No. The USB-C PD-IN port is specified for charging only and does not support data transfer or video output.

How much power reaches a laptop when using a 100W charger?

The listing states that the hub consumes 5W, so a 100W wall charger leaves up to 95W available for the laptop. The charger and cable are not included.

Are all three USB-A ports equally fast?

No. One port is listed at 5Gbps and the other two at 480Mbps.