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Compact black plastic hub with one DisplayPort input, three HDMI outputs and a USB port

STARTECH

STARTECH MST14DP123HD DisplayPort to triple HDMI adapter

SKU CH-0AZK-B9X25 MPN MST14DP123HD

Connects one DisplayPort source to three HDMI displays at up to 4096 × 2160 resolution

  • Drive three 4K 60 Hz displays from one DisplayPort output
  • Connect three HDMI monitors using a single DisplayPort source
  • Power the hub directly from a USB port without an external adapter
  • Compact 4.1 × 1.7 × 0.6 in design fits tight workspaces
  • Lightweight 2.50 oz build adds minimal bulk to mobile setups

Compact triple-display hub

The STARTECH MST14DP123HD converts a single DisplayPort source into three independent HDMI outputs. It supports 4096 x 2160 resolution at 60 Hz per display for multi-monitor productivity. The plastic enclosure measures 4.1 by 1.7 by .6 inches and weighs 2.50 oz. USB power is required for operation.

Replaces daisy-chain or splitter setups

Older daisy-chain configurations often limit resolution or refresh rate across screens. This hub drives each HDMI port at full 4K 60 Hz without bandwidth sharing. The upgrade is worth it when three 4K panels must run simultaneously from one DisplayPort 1.4 source.

Fits thin-client and laptop workflows

The adapter needs a DisplayPort 1.4 output with MST support and a free USB-A port for power. It frees up GPU outputs on compact workstations and eliminates the need for a discrete multi-head card. Buyers whose GPU lacks MST or who need more than three displays cannot use this device.

Highlights

  • Drive three 4K 60 Hz displays from one DisplayPort output
  • Connect three HDMI monitors using a single DisplayPort source
  • Power the hub directly from a USB port without an external adapter
  • Compact 4.1 × 1.7 × 0.6 in design fits tight workspaces
  • Lightweight 2.50 oz build adds minimal bulk to mobile setups

Specifications

No published specifications for this item yet.

Questions about this item

What desk space does the 4.1-inch by 1.7-inch plastic housing need?

The adapter measures 4.1 inches long, 1.7 inches wide and 0.6 inches high, so it fits behind most monitors or on a crowded desk without blocking adjacent ports.

Which cable must be plugged in first to activate all three HDMI outputs?

Connect the single DisplayPort input to the host, then attach the USB power cable before plugging in any HDMI displays; skipping the USB step leaves the extra ports inactive.

What part should be checked if one 4096 x 2160 output drops to a lower resolution?

Inspect the HDMI cables for damage or version mismatch, and verify the USB power connection is firm, because insufficient power or a faulty cable often reduces the linked display to a lower mode.

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