UGREEN USB-C Multifunction Adapter 8 in 1 – CM121

The UGREEN USB‑C Multifunction Adapter 8‑in‑1 – CM121 expands a single USB‑C port into a versatile workstation hub. With 4K HDMI video, Gigabit Ethernet, high‑speed USB ports, SD and micro‑SD card readers, and audio support—all in a compact aluminum body—this adapter delivers seamless connectivity for laptops, tablets, and smartphones. Plug-and-play compatibility across Windows, macOS, Linux, and ChromeOS makes it an essential accessory for professionals, students, and content creators.

Product Features

Multiport USB-C Adapter

USB-C Hub with 4K HDMI video output, 3 x USB 3.0 female ports, SD TF memory card reader, 1000 Mbps Ethernet adapter, and 1 USB Type-C PD 3.0 charging port, expand your MacBook’s connectivity incredibly.

4K UHD HDMI Output

Mirror or extend your screen with a USB-C HDMI adapter and directly stream max 4K UHD 3840×2160 at 30Hz, Full HD 1080P, or 3D video to an external HDTV display, monitor, or projector.

Superspeed USB C HUB Card Reader

3 USB 3.0 ports allow the connection of a USB flash drive, hard drives, keyboards, mouse, printers, thumb drives, USB sticks, MP3 players,s, etc. Built-in SD and TF slots easily access files from a universal SD card and a Micro SD card; Supports 2 cards reading simultaneously.

Fast Gigabit Ethernet Dongle

RJ45 port definitely ensures a more stable and faster wired network connection compared to WiFi, and a max speed of up to 1000Mbps. NOTE: When you unplug this product from your laptop, please do remember to unplug the Ethernet cable from the hub to prevent possible network interference; please contact us to get a driver for the Mac OS system.

Extensive Compatibility

Work perfectly for 12-inch new Macbook, M1 MacBook Pro 2020, 2019, 2018 2017, 2016, Google Chromebook, Dell XPS 13 15, Lenovo Yoga 900, HP Spectre notebook, ASUS ZenBook3, Huawei Matebook, Samsung Galaxy S8 S8+ S9, etc.

Product Specifications

• Model: CM121
• Host Interface: USB‑C (supports DisplayPort Alt Mode and PD passthrough up to 100 W)
• Video Output: 1 × HDMI (4K @ 30 Hz)
• Network: 1 × RJ45 Gigabit Ethernet (10/100/1000 Mbps)
• Power Delivery: USB‑C PD pass‑through up to 100 W
• USB Ports:
  • 1 × USB‑A 3.0 (5 Gbps)
  • 1 × USB‑A 2.0 (480 Mbps)
• Card Readers:
  • 1 × SD slot (UHS‑I)
  • 1 × micro‑SD slot (UHS‑I)
• Audio: 3.5 mm headphone/microphone combo jack
• Housing Material: Aluminum alloy
• Cable Length: Integrated 15 cm USB‑C cable
• Operating Systems: Windows, macOS, Linux, ChromeOS, Android (DP Alt Mode)
• Protections: Over‑current, over‑voltage, short‑circuit, and over‑temperature safeguards
• Dimensions: Approximately 120 × 58 × 16 mm
• Weight: Approximately 180 g