Tripp Lite U444-06N-DGU-C DVI Multiport Adapter review

The Tripp Lite U444-06N-DGU-C has a clear purpose: keep a digital DVI monitor useful when the computer connection has moved to USB-C. It combines that display output with one USB-A data port, Gigabit Ethernet and a USB-C charging input. It is most relevant to an office desk or presentation setup that already has a suitable DVI screen. The deciding limit is the maker's documented single-link 1920 × 1080 at 60Hz mode; a large DVI socket does not establish dual-link resolution or a modern 4K display arrangement.

Check the video signal and cable

The computer connection uses USB-C, and the original manual specifically requires USB DisplayPort Alternate Mode for DVI video. A data-only USB-C connection does not supply that signal. The screen connects through the adapter's DVI female output using an appropriate digital DVI cable. Tripp Lite lists its single-link DVI cable series as an optional accessory, so the necessary display cable is not part of the documented box.

The February 2024 RevC manual specifies DVI single-link video up to 1920 × 1080 at 60Hz. That is the mode this assessment uses. Do not turn a historical claim about a similar adapter, the physical size of the DVI connector or the monitor's own maximum resolution into a higher supported resolution for this exact model. Someone using a 4K display or a monitor that specifically requires a higher dual-link DVI mode should choose another documented solution.

There is one external display output. It is DVI, not HDMI, full-size DisplayPort or Mini DisplayPort. A separately purchased converter is a separate arrangement and does not make those sockets part of the supplied adapter. Also check how your monitor or speakers receive sound instead of assuming a DVI video connection provides the complete audio setup you need.

One peripheral plus wired networking

The exact model column in the family manual confirms one USB-A hub port and one RJ45 Ethernet port. The USB-A connection is advertised for USB data up to 5Gbps, with support for older device generations. It can be useful for a keyboard receiver, printer, flash drive or another individual USB peripheral. It is not a multiport USB-A desktop hub: connecting several such devices needs another connection elsewhere.

The RJ45 socket supports 10/100/1000Mbps links. It can therefore add Gigabit Ethernet to a compatible computer that lacks a built-in network socket. Actual network transfer performance depends on the computer, cable, switch and wider network; the USB and Ethernet connections do not provide measured performance guarantees. The manual describes automatic network setup and gives a Mac network-settings example if a connection needs to be established manually.

Tripp Lite explicitly says no additional adapter software or drivers are required. That makes the documented native-video route relevant when installing a USB graphics application would be inconvenient. The source does not individually establish every newer Mac chip or operating-system release, so compatibility still needs to fit the computer being connected. The manual's general laptop and tablet language is not a guarantee for any USB-C-shaped port.

Keep charging input separate from output

The additional USB-C socket is for connecting a suitable charger to power the host device. The manual specifies up to 20V/3A, or 60W, as input to that charging port. It establishes pass-through charging, but it does not separately state a net wattage available to the laptop. A buyer with a specific minimum laptop-power requirement should obtain confirmation for that setup instead of treating the 60W input label as confirmed delivered power.

The same manual rates USB-A accessory power at up to 5V/1A, or 5W. That is power for the attached peripheral, rather than power sent back to the computer. The package includes the adapter and owner manual. The charger, DVI cable, Ethernet cable and peripheral cable are separate equipment. The USB-C charging socket is not counted as a spare data port for a USB-C drive.

Choose it for an existing digital DVI desk

The U444-06N-DGU-C is useful when a single 1080p60 digital DVI screen, one USB-A accessory and wired networking cover the desk. It avoids buying around an HDMI socket when the actual monitor uses DVI. Choose a different dock for two independent external screens, more USB data ports, card access or a confirmed high-power laptop charging arrangement. Its value comes from preserving a specific older monitor connection while adding a few relevant computer connections around it.