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Black metal box with one HDMI input, four HDMI outputs, RJ-45, DB-9 serial and USB ports

STARTECH

STARTECH ST124HDVW 2x2 video wall splitter 4K 60Hz HDMI 2.0 1 in 4 out RS-232

SKU CH-94HY-A0F2K MPN ST124HDVW

Splits one HDMI 2.0 source to four displays at 4K 60 Hz for a 2×2 video wall or mirrored distribution with RS-232 control

  • Port count4
  • Adapter type1 HDMI Input 4 HDMI Outputs
  • Industry standardsHDMI 2.0
  • Input ports1 x HDMI (19 pin) Female Input 1 x RJ-45 Female 1 x DB 9-pin
  • Output ports4 x HDMI (19 pin) Female Output
  • Maximum supported resolutions4096 × 2160
  • Create a 2×2 video wall from one HDMI source
  • Split the same 4K signal to four displays simultaneously
  • True 4K 60 Hz output via HDMI 2.0 with 7.1 channel audio
  • Remote configuration through RS-232 serial control
  • Automatic EDID emulation for hassle-free setup

2x2 video wall controller

The StarTech ST124HDVW splits one HDMI 2.0 source into four HDMI outputs for a 2x2 video wall or mirrored distribution. Installers and AV integrators use it to drive four 4K 60Hz displays from a single player or PC. It supports 7.1 channel audio pass-through and HDCP 2.2 compliance for protected content. The unit includes EDID emulation for automatic display handshake.

Thermals noise and power

The compact metal enclosure measures 1.80 by 6.50 by 9.10 inches and weighs 2.20 lbs with no internal fan, so it runs silently in rack or desktop positions. A supplied universal power supply delivers the required voltage without additional cabling. Power draw in normal operation stays low enough for standard outlet circuits. No active cooling means zero acoustic footprint in quiet environments.

Build connectors and mounting

Four HDMI 19-pin outputs and one HDMI input handle 4096 x 2160 at 60Hz signals with backward compatibility to 1080p and 4K 30Hz. Control interfaces include DB-9 RS-232 serial, RJ-45 and USB 2.0 Type-A for firmware or configuration access. Front LED indicators show input status and each of the four output links. The sturdy black chassis suits permanent installation in equipment racks or behind displays.

How it compares

Measured against everything we stock in HDMI & Video Splitters, at today’s prices. Recalculated every night.

Price $795.99
Pricier than about 93% of the 1,127 comparable items (median $20.99).

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Specifications

Product
Brand nameStarTech.com
Model nameST124HDVW
Product type4K Video Wall Splitter
Adapter type1 HDMI Input 4 HDMI Outputs
Product colorBlack
Display
Maximum supported resolutions4096 × 2160
Audio & video
SoundYes
Ports & slots
Port count4
Input ports1 x HDMI (19 pin) Female Input
1 x RJ-45 Female
1 x DB 9-pin Serial Female
1 x USB Type-A (4 pin) USB 2.0 Female
Output ports4 x HDMI (19 pin) Female Output
Size & build
Product dimensions1.8 in × 6.5 in × 9.1 in
Product weight2.2 lb (1 kg)
Shipping weight1.59 kg
Package size300 × 260 × 70 mm
In the box
In the box1 × 2 × 2 Video Wall Splitter
1 x Manual
1 x Universal Power Supply
More details
Industry standardsHDMI 2.0

Questions about this item

How do I mount the ST124HDVW and which step is often missed?

Place the unit on a flat surface or shelf, connect the four HDMI outputs to displays A through D, attach the HDMI source, then plug in the universal power supply; the step often missed is connecting the DB 9-pin serial cable if you plan to use RS-232 control.

What ongoing maintenance does the ST124HDVW require?

No scheduled maintenance is needed; keep ventilation clear around the 1.80" x 6.50" x 9.10" chassis, check that the power supply and HDMI cables remain firmly seated, and update firmware via the USB Type-A port only if a new version is released.

What limit appears first during continuous 4K 60Hz operation?

The HDMI 2.0 bandwidth ceiling of 4096 x 2160 at 60 Hz is the hard limit; sustained use will not exceed this resolution or refresh rate, and HDCP 2.2 handshake stability depends on cable quality over long runs.

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