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Black rectangular USB-C dock with multiple ports including HDMI, DisplayPort, Ethernet and card slots

OREI SX-3C4K85 12-in-1 USB-C Dock 2 HDMI DP 85W PD

SKU CH-1169-MXZC4

A 12-in-1 USB-C dock adds two HDMI ports, one DisplayPort, Gigabit Ethernet, four USB ports, SD card slots and 85 W power delivery for a triple-monitor setup

  • Adapter typeDisplayPort
  • Cable length8.16 L x 2.28 W x 12 H inches
  • Output ports3x Display w/LAN
  • Connector finishCompact Size, Plastic
  • Cable jacketPlastic
  • Connector typeDisplayport
  • Triple-monitor expansion via 2 HDMI and 1 DisplayPort
  • 85 W power delivery keeps the laptop charged
  • Gigabit Ethernet provides wired network access
  • 4K resolution at 60 Hz for sharp visuals
  • Driver-free MST operation on Windows systems

Triple Monitor USB-C Dock

The OREI SX-3C4K85 turns a single USB-C port into a three-display workstation with two HDMI outputs and one DisplayPort output. It targets office workers and remote professionals who need expanded screen space for spreadsheets, coding or design review. The dock also adds wired networking, legacy USB ports and card readers in one compact unit.

Replaces Cable Clutter And Single-Port Limits

This dock replaces a tangle of individual adapters by delivering video, data, Ethernet and power through one cable. The jump is worth it when your laptop supports DP Alt Mode or Thunderbolt and you need three extended displays at up to 4K@60Hz. It does not suit machines without video-capable USB-C or users who require high-refresh gaming performance.

Driver-Free Setup With Host Port Checks

Installation is plug-and-play on Windows with no drivers required; macOS offers mirror or limited extended modes depending on the host. The 85 W pass-through charges the laptop only when a separate 100 W adapter is connected to the dock. Common issues arise when the host port lacks video alt mode or the power brick is undersized.

How it compares

Measured against everything we stock in USB Graphics & Display Adapters, at today’s prices. Recalculated every night.

Price $85.99
Pricier than about 91% of the 749 comparable items (median $23.99).

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Specifications

Product
Brand nameOREI
Product lineSX-3C4K85
Model name3x Display w/LAN
Part number3x Display w/LAN
Product type3x Display w/LAN, displayport
Adapter typeDisplayPort
Product colorBlack
Ports & slots
Output ports3x Display w/LAN
Connector typeDisplayport
Size & build
Cable length8.16 L x 2.28 W x 12 H inches
Connector finishCompact Size, Plastic
Cable jacketPlastic
Product dimensions2.3876 cm × 9.906 cm × 23.0124 cm
Product weight0.34 kg
In the box
Units per package1
In the box1 × 3x Display w/LAN

Questions about this item

What laptop port does the 12-in-1 dock need for triple-monitor MST output?

The dock requires a USB-C port with DisplayPort Alt Mode or Thunderbolt to drive three external displays via its 2 HDMI and 1 DisplayPort outputs.

Which step do users often miss when connecting three monitors to this dock on Windows?

Users often forget to confirm their laptop GPU supports three simultaneous extended displays; older Windows GPUs may limit the dock to two external screens.

When should the 100 W power adapter be added to the dock for reliable operation?

Connect a 100 W USB-C PD charger to the dock's power input whenever the laptop draws more than 85 W or when all ports and three 4K@60Hz monitors are active.

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