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Black rectangular USB 3.0 to dual HDMI adapter with two HDMI ports and short cable

STARTECH

STARTECH USB32HD2 USB 3.0 dual HDMI display adapter 4K 30 Hz 64 MB

SKU CH-RBX9-7QK5P MPN USB32HD2

Connects two independent HDMI displays through one USB 3.0 port with 4K 30 Hz on the first output and 1920 x 1200 on the second

  • Output ports2 x HDMI (19 pin) Female Output
  • Product typeUSB to HDMI Adapters
  • Product colorBlack
  • DetailsAudio: Yes Chipset ID: MCT Trigger Memory: 64 MB DDRII SDRAM
  • Key featuresIncrease your productivity by connecting two independent dis
  • Product dimensions0.6 in × 2.6 in × 12.4 in

Model Dual HDMI

  • Connect two independent displays through one USB 3.0 port
  • One HDMI port delivers 3840 x 2160 at 30 Hz
  • Second HDMI port supports up to 1920 x 1200
  • USB-powered design eliminates the need for an external power adapter
  • Built-in audio support sends 2-channel stereo sound to connected displays

Dual 4K 30 Hz displays from one USB 3.0 port

This StarTech USB32HD2 adapter adds two independent HDMI outputs through a single USB 3.0 connection. It targets laptop and desktop users who need extra screen space but lack native video ports. The device draws power directly from the USB bus, removing the need for an external supply. It suits office multitasking, trading desks and home working setups.

One port drives 4K the other stops at 1920 x 1200

The primary HDMI output supports 3840 x 2160 at 30 Hz while the secondary output is limited to 1920 x 1200. This asymmetric resolution ceiling is the single specification that decides whether the adapter fits a given monitor pair. Buyers planning two equal 4K panels should note the second port cannot match that resolution. The chipset provides 64 MB of DDRII SDRAM frame buffer.

Fanless silent operation with minimal USB power draw

No moving parts means completely silent running in normal office use. The aluminium enclosure dissipates heat passively so surface temperatures stay low during extended sessions. Power consumption stays within standard USB 3.0 limits, avoiding extra cables or adapters. The compact 0.60 x 2.60 x 12.40 inch form factor adds negligible bulk to a travel kit.

How it compares

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

Price $74.99
Pricier than about 90% of the 749 comparable items (median $23.99).

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Specifications

Product
Brand nameStarTech.com
Model nameUSB32HD2
Product typeUSB to HDMI Adapters
Product colorBlack
Ports & slots
Output ports2 x HDMI (19 pin) Female Output
Size & build
Cable lengthNo
Product dimensions0.6 in × 2.6 in × 12.4 in
Product weight2 oz
Shipping weight0.18 kg
Package size211 × 142 × 41 mm
In the box
In the box1 x USB video adapter
1 x quick-start guide

Other versions of this model

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Questions about this item

What does the 4K 30 Hz figure mean when I plug this adapter into my laptop?

One HDMI port can drive a 3840 x 2160 display at 30 Hz while the second port runs up to 1920 x 1200, giving two independent screens from a single USB 3.0 connection.

Which USB standard does the adapter use and what bandwidth does that provide for video?

The adapter connects via USB 3.0, which supplies enough throughput for 4K 30 Hz on the primary output and 1920 x 1200 on the secondary output simultaneously.

How much space does the adapter need on my desk and what mounting options exist?

The unit measures .60 x 2.60 x 12.40 inches and weighs 2.00 oz; it has no mounting brackets and sits inline between the USB cable and two HDMI cables.

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