# 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.

- [Original product page](https://bargainpostbox.co.uk/product/ugreen-cm478-5-in-1-usb-c-hub-4k-hdmi)
- [View offer](https://bargainpostbox.co.uk/visit/ugreen-cm478-5-in-1-usb-c-hub-4k-hdmi)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: UGREEN
- Model: CM478
- Category: Computers > Computer Accessories > Docks & Hubs
- Price: 8.47 GBP
- Previous price: 12.99 GBP
- Discount: 35%
- Price checked: 2026-11-12T15:03:52.154Z
- Rating: 4.6 / 5
- Reviews: 42896

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## 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

## Before you buy

- 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.

## 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.

## Customer feedback

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.
- Mixed feedback: 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.

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## Images

![UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI — 1](https://bargainpostbox.co.uk/i/u5FEnCvVmNDHqYdx9ptkjZVLzD1fJWSwJMMz302aBdKCZ4i2SFjQqTjjLWzSt4Mr3y3EuW8LzUxVC4nwP9BGtmW5O5g-iOeFUz3Vhlzh_ozhXMk5Dqd6Onjx.jpg)

![UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI — 2](https://bargainpostbox.co.uk/i/sgcQcHBztVsNckSA6pyI7INPwJRKgcxY3ODYVUQxB--wURticAkPH6BXWa8Q5VVtQJyARHb7Q5PuK1iGUEmB7IIsgC3NcbfrUOvJ6Eb6tjkoljhJ-5SpAMjG.jpg)

![UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI — 3](https://bargainpostbox.co.uk/i/de-sa2kTepR4c9Dm_iVHWHG34YbYj5iR6sdnZPHCvu2fq9YjqlHrAg5MqYBYHynJukCebOVW1FZkfw1u9DCBDd4DHr-7ZALigcEMChJKAXrtFR6Z-yo-jmrg.jpg)

![UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI — 4](https://bargainpostbox.co.uk/i/-yp7zB_HiK3bDeJjWhCw92T3pMEHw50-_oVv3R6Unz0DLlHqEsaeJuGzv_V_k7MH0gArw7jmEV7QipQgZpcHuhJ3yr-Ck-81zIw_K2Sjd5TcTsoavTr_gMkt.jpg)

![UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI — 5](https://bargainpostbox.co.uk/i/Ag81u65ceR1IlH5LdU6c3VdvEn3xJTE7leuWWQ7ayhB5F0SHpuCRVsFfXE3iYYBfcguePX1dfg6kSRNtWZPBU1Km0TcBWPvVaYEOIo0F8m7vyD6azfn1pSuy.jpg)

![UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI — 6](https://bargainpostbox.co.uk/i/qxPt3s5biSYZz5mvKX2gbCUxy8VHsmGF74G8hT7ecT_eyNtI-Yxoj7hS5qR4je15yk89eoo917_Xi40_CgCMU2kXN9m38TWyD_gSlq-J-V-X1Feq5GRdDzrJ.jpg)

![UGREEN CM478 5-in-1 USB-C Hub with 4K HDMI — 7](https://bargainpostbox.co.uk/i/9cEj1HBahCDwSuBkVcmT9mChMBp8zRI4QzKV4evVZxlgKAhr3egxF-nf8SqM_877VZUdUHNcmN6i_puAWyG4m8agzaChCfjlSw7cHv61KsZeuQiEv8VwJC0w.jpg)