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Black rectangular adapter with one DisplayPort male plug, three HDMI female ports and a micro USB power port

Rocstor

Rocstor Y10A314-B1 DisplayPort 1.4 to Triple HDMI 4K video adapter

SKU CH-H994-TD9SN MPN Y10A314-B1

Connects one DisplayPort 1.4 source to three HDMI displays, supporting up to 3840 x 2160 resolution with HDR and HDCP 2.2

  • Connect three HDMI displays from one DisplayPort 1.4 output
  • Drive dual 4K monitors at 60 Hz or triple at mixed refresh rates
  • Supports HDR and HDCP 2.2 for protected 4K content
  • Micro USB power input ensures stable multi-monitor operation
  • Compatible with MST mode for extended desktop across all screens

DisplayPort 1.4 to triple HDMI

This adapter converts a single DisplayPort 1.4 output into three HDMI ports for multi-monitor setups. It suits professionals who need expanded desktop space across three displays. The unit draws supplementary power through a micro USB connection.

MST bandwidth limits

DisplayPort 1.4 multi-stream transport divides available bandwidth across the three outputs. Dual 4K at 60 Hz is possible, while triple 4K requires one stream at 60 Hz and two at 30 Hz. Total pixel throughput cannot exceed the host link capacity.

4K resolution headroom

Each HDMI port supports 3840 x 2160 resolution with HDR and HDCP 2.2. The adapter comfortably drives two high-refresh 4K panels or three panels with mixed refresh rates. It cannot sustain triple 4K at 60 Hz simultaneously.

Highlights

  • Connect three HDMI displays from one DisplayPort 1.4 output
  • Drive dual 4K monitors at 60 Hz or triple at mixed refresh rates
  • Supports HDR and HDCP 2.2 for protected 4K content
  • Micro USB power input ensures stable multi-monitor operation
  • Compatible with MST mode for extended desktop across all screens

Specifications

BrandRocstor
Shipping weight0.07 kg
Package size152 × 38 × 5 mm

Questions about this item

Should I choose this single model or are there other capacity options?

This is the only version available; it provides one DisplayPort 1.4 input and three HDMI outputs with an integrated micro USB power cable.

What does the 3840 x 2160 resolution mean once the adapter is connected?

You can run dual 4K displays at 60 Hz or triple displays with one at 4K 60 Hz and two at 4K 30 Hz simultaneously.

How does the DisplayPort 1.4 interface limit the number of monitors I can drive?

The DP 1.4 link caps the total bandwidth, so MST mode allows up to three HDMI streams within that ceiling.

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