UGREEN CM866 5-in-1 USB-C Docking Station 4K 240Hz 100W PD (55934)

The UGREEN CM866 is a 5-in-1 USB-C docking station designed for high-refresh video output, charging and peripheral expansion. It supports up to 4K at 240 Hz or 144 Hz through its USB-C video interface using the DP 1.4 protocol, making it suitable for compatible laptops, mobile devices, handheld gaming systems and AR/VR display setups.

The dock also includes a PD 3.0 charging port rated up to 100 W and three USB 2.0 ports for peripherals such as keyboards, mice and storage devices. UGREEN specifically highlights support for AR glasses, handheld consoles and ROG handheld 30 W enhanced mode.

Key Features

• 4K High-Refresh Video: Supports up to 4K at 240 Hz or 144 Hz through the USB-C video interface with DP 1.4.
• 100 W PD Charging: PD 3.0 input supports up to 100 W power delivery.
• Three USB 2.0 Ports: Provides three peripheral expansion ports with theoretical speeds up to 480 Mbps.
• AR & Handheld Gaming Support: Designed for compatible AR glasses and handheld gaming devices.
• ROG 30 W Enhanced Mode: UGREEN specifically lists support for ROG handheld 30 W enhanced mode.
• Multi-System Compatibility: Supports macOS, Windows, Linux, Android, iOS and iPadOS.

Technical Specifications

Compatibility & Important Information

The host device must support compatible USB-C video output for display functions to work. UGREEN lists compatibility with macOS, Windows, Linux, Android, iOS and iPadOS, along with devices including laptops, smartphones, tablets, AR glasses, handheld gaming devices and VR glasses.

The three peripheral USB ports are USB 2.0 ports rated at up to 480 Mbps theoretical speed. They are not 10 Gbps USB ports. Maximum video refresh rate, HDR, Dolby Atmos and enhanced gaming modes depend on support from the host device, display and connected equipment.