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Compact aluminium USB-C adapter with two HDMI ports

Rocstorage, Inc

Rocstorage, Inc Y10A203A1 USB-C Dual HDMI Adapter 4K 30Hz

SKU CH-9K13-DHXKC

Connects a single USB-C port to two HDMI monitors at up to 4K 30Hz for extended or mirrored displays

  • TypeConsumer Electronics
  • Connect two 4K monitors from one USB-C port
  • Mirror or extend displays with Multi-Stream Transport hub
  • Supports 3840x2160 resolution at 30Hz refresh rate
  • Works with Mac and Windows laptops via USB-C
  • Aluminium housing provides durable passive operation

Dual 4K HDMI output

The Rocstorage Y10A203A1 adapter connects two HDMI monitors to a single USB-C or Thunderbolt port on Mac or Windows laptops. Each display can show 3840x2160 resolution at 30Hz using Multi-Stream Transport. The aluminium housing requires no external power supply for operation.

Verify host port capability

Confirm your USB-C port supports DisplayPort Alternate Mode before purchase. Mac systems with MST support will show extended desktops, while those without may mirror only. Windows devices need MST-capable graphics drivers for dual independent screens at the stated resolution.

Aluminium build aids heat dissipation

The metal casing passively manages warmth during extended dual-monitor sessions without fans or external power bricks. No software installation is required on supported operating systems, so the adapter works immediately after connection for expanded or mirrored desktop configurations.

Highlights

  • Connect two 4K monitors from one USB-C port
  • Mirror or extend displays with Multi-Stream Transport hub
  • Supports 3840x2160 resolution at 30Hz refresh rate
  • Works with Mac and Windows laptops via USB-C
  • Aluminium housing provides durable passive operation

Specifications

BrandRocstor
TypeConsumer Electronics

Questions about this item

What comes with the Rocstor Y10A203A1 adapter and do I need extra cables?

The adapter itself is supplied; two HDMI cables for the monitors are not included and must be purchased separately.

How do I choose between mirror and extended desktop modes?

The MST hub supports both — select mirror for identical 4K images on both screens or extended for independent 3840x2160 desktops.

What does the 4K 30Hz rating mean when I plug two monitors in?

Each connected display can run at up to 3840x2160 resolution at 30 Hz refresh rate simultaneously.

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