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Black and space-grey rectangular USB-C docking station with multiple ports on front and rear

STARTECH

STARTECH DK31C2DHSPD docking station triple 4K 100W PD 6 USB SD Ethernet

SKU CH-NMYE-3TF1C MPN DK31C2DHSPD

A USB-C dock that drives three 4K displays via two DisplayPort 1.4 and one HDMI 2.0 ports, delivers 100W charging, and provides six USB ports up to 10Gbps, SD 4.0 reader, Gigabit Ethernet, and audio

  • ColorBlack & Space Gray
  • CompatibilityWindows 10 / Windows 8.1 / Chrome OS 78.x
  • Thunderbolt 3Yes
  • Ports Spec1 x USB Type-C 3.0 (Fast-Charge, 24 pin) 2 x USB Type-A 3.1
  • Dimension1.20" x 8.30" x 3.50"
  • Weight0.66 lb.
  • Drive three 4K displays for expansive workspaces using two DisplayPort 1.4 and one HDMI 2.0 outputs
  • Charge your laptop at 100W Power Delivery while docked via USB-C or Thunderbolt 3
  • Transfer large files at 10 Gbps through two USB-C 3.1 Gen 2 ports
  • Read UHS-II cards quickly with the built-in SD 4.0 reader slot
  • Connect wired networks reliably using the integrated Gigabit Ethernet RJ-45 port

Triple 4K docking station

The StarTech DK31C2DHSPD connects a Windows or Chrome OS laptop to three external monitors through two DisplayPort 1.4 outputs and one HDMI 2.0 port. It delivers up to 100W of power to charge the host while providing six USB ports, an SD 4.0 card reader, Gigabit Ethernet and a 3.5 mm audio jack.

Host compatibility checklist

Your laptop must support DisplayPort 1.4 Alt Mode with MST and DSC over its USB-C or Thunderbolt 3 port to enable triple 4K output. Driverless operation is offered on Windows 10, Windows 8.1 and Chrome OS 78.x; verify that your device meets those OS and firmware requirements before ordering.

Build integration

The dock draws its upstream link from a single USB-C host cable measuring 3.3 feet and supplies 100W PD, reducing the need for a separate laptop charger. Two USB-C 10 Gbps ports and four USB-A ports free up peripheral connections, while dual Kensington lock slots secure the unit on a desk.

Highlights

  • Drive three 4K displays for expansive workspaces using two DisplayPort 1.4 and one HDMI 2.0 outputs
  • Charge your laptop at 100W Power Delivery while docked via USB-C or Thunderbolt 3
  • Transfer large files at 10 Gbps through two USB-C 3.1 Gen 2 ports
  • Read UHS-II cards quickly with the built-in SD 4.0 reader slot
  • Connect wired networks reliably using the integrated Gigabit Ethernet RJ-45 port

Specifications

BrandStarTech.com
ModelDK31C2DHSPD
ColorBlack & Space Gray
CompatibilityWindows 10 / Windows 8.1 / Chrome OS 78.x
Thunderbolt 3Yes
Ports Spec1 x USB Type-C 3.0 (Fast-Charge, 24 pin)
2 x USB Type-A 3.1 (9 pin, Gen 1, 5 Gbps)
2 x USB Type C 3.1 (10 pin, Gen 2, 10 Gbps)
2 x USB Type-A 2.0 (4 pin)
2 x DisplayPort 1.4
1 x HDMI 2.0
1 x SD / MMC Slot
1 x RJ-45
1 x 3.5 mm Stereo Audio
Dimension1.20" x 8.30" x 3.50"
Weight0.66 lb.
FeaturesHigh Performance USB-C dock: USB-C docking station for Windows/Chrome OS, featuring up to three 4K video outputs (2 x DisplayPort 1.4 & 1 x HDMI 2.0), 100W PD, 6 port USB Hub (10Gbps), SD 4.0 Card Reader, Gigabit Ethernet, and headset port.
Displayport 1.4 with DSC: Triple monitor USB-C docking station (MST) supports dual 4K 60Hz or triple 4K 30Hz on DP 1.4 Alt-Mode HBR3 w/ DSC enabled laptop (min. Intel 11th Gen); works with DP 1.2 supporting dual monitor 1080p@60Hz.
100W Power Delivery Charging: Power & charge Windows-based USB-C/Thunderbolt 3 workstation laptops, Chromebooks, ultr
Shipping weight1.36 kg
Package size270 × 150 × 94 mm

Questions about this item

Does the box include video cables or do I need to buy DisplayPort and HDMI leads separately?

The package contains the dock, a 3.3-foot USB-C host cable and a power adapter; monitor cables are not included.

My laptop only has Thunderbolt 3 — will it still drive three 4K screens or should I choose a dual-monitor setup?

Thunderbolt 3 hosts run dual 4K at 60 Hz or triple 4K at 30 Hz when the GPU supports DP 1.4 Alt Mode with DSC; otherwise expect dual 1080p at 60 Hz.

The spec says 100 W Power Delivery — what does that actually deliver to a workstation laptop under load?

It supplies up to 100 W to the host, enough to charge most USB-C or Thunderbolt 3 workstations while the dock is driving peripherals.

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