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Small rectangular USB-C adapter with two HDMI ports, matte black finish

Monoprice Inc.

Monoprice Inc. 143525 USB-C Dual 4K HDMI Adapter video accessory

SKU CH-0E0T-CN7FE MPN 143525

Adds two 4K HDMI displays at up to 60 Hz via USB-C with Thunderbolt 3 and DisplayPort Alt Mode support

  • Product typeUSB to HDMI
  • Product weight0.15
  • Key featuresTwo 4K Displays: This USB C to Dual 4K HDMI Adapter supports
  • Drives two 4K monitors at 60 Hz on DP 1.4 hosts
  • Drives two 4K monitors at 30 Hz on DP 1.2 hosts
  • Enables independent screens via MST on Windows
  • Mirrors or extends desktop on both Windows and macOS
  • Weighs just .15 kg for easy travel

Dual 4K HDMI Adapter for USB-C Hosts

This Monoprice 143525 adapter adds two HDMI outputs to a USB-C or Thunderbolt 3 port. It targets professionals and creators who need extra screen space from a single laptop connection. Compatibility covers Windows and macOS devices that support DisplayPort Alt Mode.

Sustained multi-display output at 4K

On hosts with DisplayPort 1.4 Alt Mode the adapter drives two external monitors at 4K 60 Hz continuously. On hosts limited to DisplayPort 1.2 Alt Mode the same two monitors run at 4K 30 Hz. The hardware maintains these rates without external power or active cooling.

Compact plug-and-play build quality

The unit weighs .15 kg and fits easily in a laptop bag, keeping desks free of bulky docks. Two standard HDMI ports accept common cables without adapters. Driver-free operation means immediate recognition on supported Windows and macOS systems. It does not suit hosts lacking DisplayPort Alt Mode or users who need more than two external displays.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $27.99
Cheaper than about 62% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameMonoprice
Model name143525
Part number143525
Product typeUSB to HDMI
Size & build
Shipping weight0.07 kg
Package size152 × 117 × 25 mm

Questions about this item

Does the 143525 adapter run hot or draw much power when driving two 4K@60Hz displays all day?

The adapter is compact and lightweight at .15 kg and requires no external power supply; it draws power from the host USB-C port while running two 4K@60Hz displays on DP 1.4 Alt Mode.

What must my laptop already have for this adapter to work?

Your host needs a USB-C or Thunderbolt 3 port that supports DisplayPort 1.2 or 1.4 Alt Mode; no extra drivers or software are required.

Will this adapter let me extend two 4K monitors from a 2018 MacBook Pro that only has Thunderbolt 3?

Yes, Thunderbolt 3 hosts with DisplayPort Alt Mode are supported; on DP 1.2 Alt Mode the adapter delivers two 4K@30Hz displays, and on DP 1.4 Alt Mode it delivers two 4K@60Hz displays.

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