UGREEN CM556 USB-C to DisplayPort 8K Cable 1m

The UGREEN CM556 USB-C to DisplayPort 8K Cable 1M provides a direct high-resolution display connection between USB-C computers and DisplayPort-equipped monitors.

Unlike an adapter that requires an additional DisplayPort cable, the CM556 integrates USB-C and DisplayPort male connectors into a single 1-metre cable. This provides a cleaner setup for high-resolution monitors, gaming displays, professional workstations and creative environments.

Stunning 8K at 60Hz Resolution

One of the main advantages of the UGREEN CM556 is support for resolutions up to 7680 × 4320 at 60Hz.

8K provides four times as many pixels as 4K, making the cable suitable for compatible high-resolution monitors used for professional graphics, video production, detailed visualisation and other demanding applications.

The source device and display must support the required resolution for 8K operation.

4K at 144Hz for Gaming

The CM556 isn’t limited to extremely high resolutions. It also supports 4K at up to 144Hz, providing an excellent combination of resolution and refresh rate for compatible gaming monitors.

A higher refresh rate can provide smoother motion during fast-paced gaming and other high-frame-rate applications.

For gamers with compatible hardware, this makes the CM556 considerably more capable than basic USB-C display cables limited to 4K at 60Hz.

2K at 240Hz

The CM556 can also support 2560 × 1440 at up to 240Hz on compatible equipment.

This can be particularly useful for competitive gaming, where users may prefer a lower resolution combined with a much higher refresh rate.

Therefore, the cable can accommodate different priorities:

8K @ 60Hz → Maximum resolution

4K @ 144Hz → High resolution + high refresh rate

2K @ 240Hz → Very high refresh rate

DisplayPort 1.4 Performance

The UGREEN CM556 is based on DisplayPort 1.4 and supports bandwidth up to 32.4Gbps.

This high bandwidth enables the cable to handle demanding video signals while remaining backward compatible with lower DisplayPort resolutions and refresh rates.

HDR Support

The cable supports High Dynamic Range (HDR) on compatible devices.

HDR allows supported monitors to display a broader range of brightness, contrast and colour information. This can improve visual quality when watching HDR content, gaming or working with compatible professional media.

USB-C with DisplayPort Alt Mode

An important compatibility requirement is that the computer’s USB-C port must support DisplayPort Alternate Mode (DP Alt Mode).

A USB-C connector does not automatically mean that the port supports video output.

The CM556 will therefore work with compatible:

• USB-C ports with DisplayPort Alt Mode
• Thunderbolt 3 ports
• Thunderbolt 4 ports
• Compatible USB4 ports with video output

Before purchasing, users should confirm that their USB-C port supports video output.

USB-C Male to DisplayPort Male

The CM556 has:

USB-C Male → DisplayPort Male

This means no separate DisplayPort cable or adapter is required.

Simply connect the USB-C end to the compatible computer and the DisplayPort end directly to the monitor.

Digital Video and Audio Transmission

DisplayPort can carry both high-resolution digital video and digital audio. Therefore, the CM556 can transmit picture and sound to compatible DisplayPort displays through the same connection.

This is useful for monitors with built-in speakers and other supported display equipment.

Ideal for Multi Monitor Workstations

The CM556 can also be used to connect an additional DisplayPort monitor to a compatible USB-C computer.

Depending on the computer and operating system, users can select between mirror and extended display modes.

Extended mode is particularly useful for professionals working with multiple applications, spreadsheets, video-editing software, graphics applications, programming environments and other productivity workloads.

Designed for Professional Workstations

The combination of high resolution and high refresh rates makes the UGREEN CM556 suitable for more than general office applications.

It can be used for:

• Graphic design
• Video editing
• CAD applications
• Photography
• 3D modelling
• Gaming
• Financial workstations
• Multi-monitor office setups
• High-resolution content viewing

Durable Nylon Braided Cable

The CM556 features a braided nylon outer jacket, helping protect the cable against regular bending, pulling and everyday wear.

The braided construction also improves resistance to tangling, making the cable suitable for both permanent desktop installations and users who regularly carry their accessories.

Aluminium Alloy Connector Housing

UGREEN uses aluminium-alloy connector housings to improve durability and heat resistance around the connectors.

Combined with the reinforced cable jacket, this provides a more robust construction than basic plastic display cables.

Plug and Play Operation

The UGREEN CM556 normally requires no additional drivers or software.

Simply connect:

USB-C Laptop/PC → CM556 → DisplayPort Monitor

The operating system can then detect the external display and allow you to configure the required resolution, refresh rate and display mode.

Key Features

• USB-C Male to DisplayPort Male
• DisplayPort 1.4
• Supports 8K 7680 × 4320 @ 60Hz
• Supports 4K 3840 × 2160 @ 144Hz
• Supports 2K 2560 × 1440 @ 240Hz
• Up to 32.4Gbps bandwidth
• HDR support
• HDCP support
• Digital video and audio transmission
• Compatible with USB-C DP Alt Mode
• Compatible with supported Thunderbolt 3/4 devices
• Supports mirror and extended display configurations
• Braided nylon cable
• Aluminium-alloy connector housing
• Gold-plated connector contacts
• Plug-and-play operation
• No drivers normally required
• 1-metre length
• Black finish

Technical Specifications

Ideal Applications

The UGREEN CM556 1M is particularly suitable for 8K monitors, 4K high refresh rate gaming monitors, professional workstations, video editing, graphic design, gaming and multi monitor office setups.

QUICK LINKS

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