StarTech DK30A2DH
StarTech docking stations

StarTech DK30A2DH

The DK30A2DH is a way to share a monitor-and-peripheral setup across older USB-A laptops and newer USB-C machines. Laptop power remains a separate connection.

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Consider it for

  • Shared desks with USB-A and USB-C laptops
  • Many existing USB-A peripherals

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  • No host charging through USB-C or USB-A.
  • Maximum two displays despite four video sockets.
  • DisplayLink driver required; assess graphics-sensitive workloads separately.

Keep the original charger on the desk

The most important omission is deliberate: this dock provides no USB-C Power Delivery to the host. Connecting it to a newer notebook therefore does not turn it into a one-cable charging station. It can still be useful where an older computer needs a barrel-plug adapter anyway, or where a workstation requires more power than ordinary USB-C docks provide.

Both host cable types are included. This makes migration between generations straightforward at the connector level, but the display software must still be supported on each computer. DisplayLink is responsible for the external screens; it is not native Thunderbolt video.

Check the exact configuration and included power supply.

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Choose two outputs from the paired connections

The dock offers DisplayPort and HDMI choices for two independent 4K60 displays. Four video sockets do not mean four screens. You can use two DisplayPort monitors, two HDMI monitors or one of each, matching equipment already on the desk instead of replacing it for a connector preference.

Six USB-A data ports are the other reason to consider this model. A printer, keyboard, mouse, webcam and storage device can fill a modern laptop’s limited sockets surprisingly quickly. Gigabit Ethernet and separate audio connections complete the older-desk orientation. A user whose peripherals are mostly USB-C should count the adapters that would be required here; the abundant USB-A selection is only an advantage when it matches the equipment.

Connections & compatibility

Connection to laptop
USB-A or USB-C using included host cables
Display technology
USB graphics / DisplayLink
Maximum displays (conditions apply)
2 displays maximum
Power to laptop (W)
No laptop charging
HDMI sockets
2
DisplayPort sockets
2
Wired network
Gigabit Ethernet
USB peripherals
6 USB-A data ports at 5Gbps
Display requirements
Dual 4K60 using paired HDMI/DisplayPort choices
Mac notes
DisplayLink required; two extended screens on supported Macs
Windows notes
Compatible DisplayLink software required

These are published specifications, not results from hands-on testing. Maximum screen counts depend on the laptop, operating system, connection and chosen resolution.

Check your setup requirements

Sources & specifications

Research checked September 11, 2026. Product revisions, firmware and operating systems can change compatibility.

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Confirm model, condition, seller, included cables and power supply before ordering.

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Understand the setup

Compatibility

DisplayLink vs Thunderbolt or Native USB-C Docks

DisplayLink and Thunderbolt docks can put similar sockets on a desk while taking different routes to the screen. Thunderbolt and native USB-C video use display streams supplied by the computer. DisplayLink creates USB-driven virtual displays with compatible hardware and software. Choose the route from the exact host, monitor plan and application constraints—not from the HDMI count.

Read the guide

Compatibility

Dual Monitors on Mac: Chip Limits, MST & DisplayLink

To use two monitors with a Mac, first identify the exact Mac and chip, then decide whether the two screens will use native display streams, an MST path that may mirror, or DisplayLink virtual displays. Two sockets on a dock answer none of those questions by themselves. The steps below separate Apple’s display ceiling from the dock’s connection method.

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