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Small black rectangular HDMI splitter box with USB power cable

STARTECH

STARTECH ST122HD4KU HDMI Splitter 1 In 2 Out 4K 30Hz USB Powered

SKU CH-FG17-G5EMG MPN ST122HD4KU

Splits one HDMI source to two displays at 4K 30 Hz and draws power from a USB port

  • TypeStarTech.com 4K HDMI Splitter 1 In 2 Out - 4K 30Hz HDMI 1.4
  • Changer TypeHDMI
  • Ports2 Ports Plastic
  • AudioStarTech.com 4K HDMI Splitter 1 In 2 Out - 4K 30Hz HDMI 1.4
  • Industry Standardson_product_combined_cancer_reproductive
  • ColorBlack
  • Split one HDMI source to two displays with 4K 30 Hz support
  • USB powered design draws 5 V from any nearby port
  • Backward compatible with 1080p sources and displays
  • Includes high-speed HDMI cable and universal power adapter
  • Compact 24.4 in by 2 in by 0.7 in form factor weighs 0.75 kg

4K 30Hz HDMI Splitter for Dual Displays

This one‑in‑two‑out HDMI 1.4 splitter sends a single 4K 30Hz video source to two screens simultaneously. It suits desktop or laptop users who need to mirror content across two monitors or a monitor and a television without adding a second graphics output.

USB Power and Included Cabling

The unit draws 5 V DC from any standard USB port using the supplied cable and universal power adapter, so no dedicated mains brick is required. A 24.4‑inch high‑speed HDMI cable is bundled, and the black plastic enclosure measures 24.4 in by 2 in by 0.7 in with a weight of 0.078 kg for simple desk placement.

Passive Cooling and Low Power Draw

With no internal fan the splitter runs silently and adds minimal heat to a workstation. Power consumption stays at the 5 V USB level, and the HDMI 1.4 interface supports 3840 × 2160 at 30 Hz as well as 1080p fallback. Buyers needing 4K at 60 Hz or more than two outputs should consider a different class of device.

Highlights

  • Split one HDMI source to two displays with 4K 30 Hz support
  • USB powered design draws 5 V from any nearby port
  • Backward compatible with 1080p sources and displays
  • Includes high-speed HDMI cable and universal power adapter
  • Compact 24.4 in by 2 in by 0.7 in form factor weighs 0.75 kg

Specifications

BrandStarTech.com
SeriesST122HD4KU
ModelST122HD4KU
Part NumberST122HD4KU
TypeStarTech.com 4K HDMI Splitter 1 In 2 Out - 4K 30Hz HDMI 1.4 2 Port Video Splitter Box -with high speed HDMI cable, USB power cable - Black (ST122HD4KU), HDMI
Changer TypeHDMI
Ports2 Ports Plastic
AudioStarTech.com 4K HDMI Splitter 1 In 2 Out - 4K 30Hz HDMI 1.4 2 Port Video Splitter Box -with high speed HDMI cable, USB power cable - Black (ST122HD4KU)
Industry Standardson_product_combined_cancer_reproductive
ColorBlack
Cable LengthNo
SpecificationsStarTech.com 4K HDMI Splitter 1 In 2 Out - 4K 30Hz HDMI 1.4 2 Port Video Splitter Box -with high speed HDMI cable, USB power cable - Black (ST122HD4KU), ST122HD4KU, 2, HDMI, 24.4 L x 2 W x 0.7 H inches, 0.078 kilograms, Black, 2 Year, 5.2 L x 15.2 W x 21.8 H centimeters, 0.38 kilograms
Input ConnectorHDMI x 1
Output ConnectorHDMI x 2
Connector StyleHDMI
Maximum Cable Length2 Port
FeaturesSplit an HDMI audio/video source to two separate HDMI Displays with support for HDMI 4K and Power through a nearby USB port
Compatible with 4K HDMI video source devices such as desktop and laptop computers and 4K HDMI Televisions and Monitors
Backward compatibile with High-definition 1080p video sources and displays
Supports video resolutions up to 4K
1x2 HDMI Splitter / 2-port HDMI Splitter / 4K HDMI Splitter / USB Powered HDMI Splitter / 4K at 30Hz
Dimensions24.4 in x 2 in x 0.7 in
Weight0.75
Package Quantity1
Disclaimeron_product_combined_cancer_reproductive
Shipping weight0.36 kg
Package size216 × 147 × 53 mm

Questions about this item

What resolution and refresh rate does the HDMI 1.4 splitter actually support?

The HDMI 1.4 splitter handles 3840 x 2160 at 30 Hz and is backward compatible with 1080p sources and displays.

How much space does the 24.4 in long splitter need on a desk or rack?

The unit measures 24.4 in long, 2 in wide and 0.7 in high, weighing 0.75 kg, so it fits on a shelf or can be velcro-mounted behind a monitor.

Does the box draw power from the HDMI source or must I plug the USB cable into a 5 V port?

Connect the supplied USB power cable to any 5 V DC USB port or the included universal adapter; the splitter will not run reliably on HDMI bus power alone.

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