Dell DA200 USB-C adapter (D3MT1) – HDMI + Ethernet

The Dell DA200 (D3MT1) is a compact USB-C adapter that combines an HDMI video output and a wired Ethernet port in a single portable accessory. It connects to laptops and mobile devices with USB-C to deliver HDMI video to external displays and provide a stable RJ45 network connection for environments where Wi‑Fi is unavailable or unreliable. The adapter is designed for mobility and straightforward plug-and-play use without additional drivers on most modern operating systems.

Advantages

The adapter offers a slim form factor that is easy to carry and store, enabling quick connection to projectors, monitors or TVs via HDMI. The integrated Ethernet port supplies a consistent wired connection suitable for video calls, large file transfers and secure network access. The device supports automatic configuration on many systems and reduces cable clutter by combining video and network functions in one peripheral.

Suitable for

• Presentations and meetings requiring HDMI video output
• Remote work where a stable wired internet connection is needed
• Business travel and mobile use with limited ports
• Connecting laptops to hotel or conference room wired networks
• Home office setups that require a secondary display and Ethernet

Key specifications

• Interface: USB-C host connection
• Video output: HDMI port supporting common resolutions up to 1920x1080 or 3840x2160 depending on host device capabilities
• Network: Gigabit Ethernet (RJ45) compatibility for wired LAN access
• Power: Bus-powered via connected USB-C port (no separate power supply required)
• Form factor: Compact, portable adapter with short built-in cable

How to use

Connect the USB-C plug of the Dell DA200 to a compatible USB-C port on your laptop or mobile device. Attach an HDMI cable between the adapter's HDMI port and the external display, then connect an Ethernet cable to the adapter's RJ45 port for wired network access. The connected device should detect the external display and network automatically; if necessary, select the external display in your system display settings and configure the network adapter in the operating system network settings.

Recommendations

Use a high-quality HDMI cable and a good condition Ethernet cable to ensure reliable video and network performance. Verify that your device's USB-C port supports video output and data transfer simultaneously. For higher-resolution video output, check the host device specifications to confirm supported HDMI modes.