# UGREEN CM843 14-in-1 Laptop Docking Station

The UGREEN CM843 is a 14-in-1 laptop docking station with two HDMI ports and one DisplayPort, plus USB, card-reader, audio and Ethernet connections. Its multi-monitor modes depend on the operating system and the laptop’s USB-C video and power capabilities.

- [Original product page](https://bargainpostbox.co.uk/product/ugreen-cm843-14-in-1-laptop-docking-station)
- [View offer](https://bargainpostbox.co.uk/visit/ugreen-cm843-14-in-1-laptop-docking-station)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: UGREEN
- Model: CM843
- Category: Computers > Computer Accessories > Docks & Hubs
- Price: 89.99 GBP
- Previous price: 129.99 GBP
- Discount: 31%
- Price checked: 2026-11-12T15:03:42.950Z
- Rating: 4.6 / 5
- Reviews: 102

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

- Connect up to three external displays on Windows, with supported resolutions and refresh rates varying by the number of screens and output used.
- The dock lists HDMI, DisplayPort, multiple USB ports, SD and microSD readers, Gigabit Ethernet and 3.5 mm audio among its 14 connections.
- Laptop charging is rated up to 100W, while a separate USB-C output is rated up to 20W. Their combined maximum is 100W when both are used.
- On macOS, external displays mirror rather than showing separate extended content.

## Pros

- Combines display outputs, wired networking, card readers and audio in one dock for a consolidated desk connection.
- Windows users can connect up to three external displays, with separate content on each according to the listing.
- The 100W upstream USB-C port supports laptop charging, subject to the laptop supporting Power Delivery.
- Provides Gigabit Ethernet and SD and microSD slots for wired network and card-based workflows.

## Cons

- macOS users cannot use this dock for multiple independent extended external displays. The listing says they mirror the same content.

## Specifications

### Identity
- Brand: UGREEN
- Model: CM843
### Connections
- Total ports: 14
- HDMI ports: 2
- USB ports (listing details): 3
- Port configuration: 14 ports in total: 2× HDMI, 1× DisplayPort, 1× Gigabit Ethernet, 1× USB‑C Upstream, 1× USB‑C PD \(20 W\), 2× USB‑C 10 Gbps, 1× USB‑A 10 Gbps, 2× USB‑A 5 Gbps, SD, microSD, 3.5 mm audio.
- USB-C and USB-A data speeds: 10Gbps
- USB-A rear-port speed: Two rear USB‑A ports support up to 5 Gbps.
- Ethernet speed: Gigabit Ethernet at up to 1,000 Mbps
- SD and microSD transfer speed: 170MB/s
### Display
- Three-monitor mode (Windows): up to three 4K displays at 30Hz
- Two-monitor mode: 4K@60Hz
- Single DisplayPort display: up to 4K@120Hz or 8K@30Hz
- Single DisplayPort requirements: This requires a laptop with DisplayPort 1.4 and DSC \(Display Stream Compression\).
- macOS display behaviour: On macOS, multiple external monitors can only mirror the same content across all displays
### Power and compatibility
- Laptop USB-C power delivery: 100W
- USB-C PD output: 20W
- Combined power when both USB-C PD ports are used: The 100 W upstream port and the 20W output share a combined maximum of 100W.
- Power adapter: 140 W DC power adapter
- Supported connections: USB-C, USB4, and Thunderbolt
- Operating systems: Windows 10 and 11 and macOS
- Laptop connection requirements: The laptop port must support Power Delivery and DisplayPort Alt Mode
### Other listing details
- Hardware interface: USB Docking Station
- Manufacturer part number: 55892A
- Country of origin: China

## Before you buy

- Display output requires laptop DisplayPort Alt Mode and laptop charging requires Power Delivery. The listing describes three-screen Windows output at up to 4K@30Hz, while its detailed configuration specifies HDMI outputs at 4K@60Hz and DisplayPort at 4K@30Hz. It also gives different laptop-charge timing claims, 50% in 32 minutes and approximately 27 minutes under stated conditions, so neither timing should be treated as assured. The listing says 3 USB ports in one specification but enumerates five USB-A ports and three USB-C data ports in its 14-port layout. Confirm the port and display configuration for the intended setup before buying.

## A good fit for

- Windows laptop users wanting several external displays and a range of desk peripherals connected through one dock.
- Users who need wired Gigabit Ethernet or SD and microSD card slots alongside monitor connections.
- Laptop users seeking a dock with a claimed 100W upstream charging capability, provided their laptop supports Power Delivery.

## Less suited to

- MacBook users who need multiple external monitors to show different content in extended mode.
- Users whose laptop lacks USB-C, USB4 or Thunderbolt connectivity with DisplayPort Alt Mode and Power Delivery support.

## Customer feedback

The supplied evidence contains aggregate star ratings but no customer-comment summary, so it does not establish particular praised features or reported problems. The rating distribution is mostly in the upper categories, with a smaller share in the lower ones. Treat that as a broad signal only, not evidence that the dock’s stated display modes or charging performance will suit a specific laptop.

## Frequently asked questions

### Can the UGREEN CM843 run three external monitors?
The listing claims support for up to three external displays on Windows. Its detailed configuration gives two HDMI outputs at 4K@60Hz and DisplayPort at 4K@30Hz for a three-display setup. macOS external displays mirror rather than extend independently.
### Will it work with any USB-C laptop?
No. The laptop connection needs DisplayPort Alt Mode for video and Power Delivery for laptop charging. USB4 or Thunderbolt connections are also listed as supported.
### How much power can it deliver to a laptop?
The upstream USB-C port is rated up to 100W. When the separate 20W USB-C output is also in use, the two ports share a combined maximum of 100W, so each may deliver less than its individual rating.
### Are all USB ports 10Gbps?
No. The listing identifies 10Gbps data ports and says two rear USB-A ports support up to 5 Gbps. Its separate total-USB-port field conflicts with the detailed port layout, so confirm the configuration if port count matters.

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## Images

![UGREEN CM843 14-in-1 Laptop Docking Station — 1](https://bargainpostbox.co.uk/i/_uzAZHxwSwdhLBQA-uMM8tEAnJw-PAEHGl__-kDiZQjf2n20EBzdSnaG1kZkC-ck3sRUqTbw4XMwlPpv9JSxY6_nfRK2T_iAV7LstEjPFzDb8dKDilaRMrNl.jpg)

![UGREEN CM843 14-in-1 Laptop Docking Station — 2](https://bargainpostbox.co.uk/i/BTDTpFtkvw-z8mLg8v-8haSfGl_IRdxX7fn6gYmusmRg8ooQ9S03LoWzvbz8oLcAY_CE6h4crHFqDFyz6PM9IiDOum_izGxbIpgpjVD8Qp2pu0jh9WiajOID.jpg)

![UGREEN CM843 14-in-1 Laptop Docking Station — 3](https://bargainpostbox.co.uk/i/mWXqcwDjJ-5V5mW5GPXmn0NvD0QQiGXs79nlUI0Gll0Rrz_oo88E7qwIfi1LWfWW8mTQvanpZ_CtaVS3MtDfjMjxu7fsHthIJcZ0jNar9Bl_S21dgGk5y-_M.jpg)

![UGREEN CM843 14-in-1 Laptop Docking Station — 4](https://bargainpostbox.co.uk/i/w-W19WM9aD2_MnIOs_any_nvmKtLTGbonQuBnVXA9SdKn_zyykD7lwiF6BTaUEMnhlynwJpwe93gwyeXsIFsO0XkCsKXRiGVAEX3BcvxCn2Zx2mzdSNUO0Z2.jpg)

![UGREEN CM843 14-in-1 Laptop Docking Station — 5](https://bargainpostbox.co.uk/i/W6UbhhkYCOEPqi_D2AUEj_KP8Qix4SZydKLkUh3vSStR90dJVFRCF7OIbSzzQh2hrC8zJcWiyzbP3-4OY7RBztI6dVg_CApaj_OHiWBWzU_JG9nyNCnFjbi0.jpg)

![UGREEN CM843 14-in-1 Laptop Docking Station — 6](https://bargainpostbox.co.uk/i/hjs0ThnC2uxc0gxAHVp4UiBHmkVpEfWdG2EwLwvYmy2XN0jaX2PYLC4UBzm7045_-Pm0LCBzzXexHhN_zbZc8h-UL60tQOOKCoL4VcZD9asf40CaMyHxx-Sz.jpg)

![UGREEN CM843 14-in-1 Laptop Docking Station — 7](https://bargainpostbox.co.uk/i/0R1kdo0Jz4n0Wj8e8zFddqonbIChjzxCN5amUyxYV4-LcVVgyxaiAHZZxCflT4kW0-IZ_KAdwh7-MeT_0ltX2dXHLNLE3D2OVfx64Q7dfaj8mIxgz7J0nLrC.jpg)