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StarTech ST128HDMI2 8 Port Rack-Mountable HDMI Video Splitter with Audio

StarTech ST128HDMI2 8 Port Rack-Mountable HDMI Video Splitter with Audio
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StarTech ST128 Overview

  • 1Description
  • 2General
  • 3Applications
  • 4Certifications, Reports, and Compatibility

The black ST128HDMI2 8 Port Rack-Mountable High Speed HDMI Video Splitter with Audio from StarTech lets you share a single HDMI audio-video source with up to 8 HDMI or DVI-D displays without sacrificing image or sound quality.

Supporting true HD 1080p video resolutions, the HDMI splitter acts as a distribution amplifier that enables you to situate your HDMI-capable displays up to 50’ (15m) away from the splitter and features 3.5mm audio connections. It gives you the option of sending your accompanying audio signal through the HDMI cable, or through a separate channel.

A suitable addition to virtually any application requiring high quality video, the HDMI Splitter is easy to install as a standalone or rack-mounted device using the included brackets and provides distortion-free digital video.


  • Splits a single HDMI audio-video source to up to 8 HDMI devices without signal loss Supports a wide range of PC and supports HDTV resolutions from VGA to WUXGA and 480p to 1080p
  • Audio signal can be output through HDMI or using separate 3.5mm audio outputs
  • Includes rack mounting brackets
  • Supports HDCP and EDID
  • Can be cascaded up to 3 layers
  • High Speed HDMI compliant
  • Passes DVI video signals (DVI to HDMI adapters/cables required; sold separately)
  • LED Power/active indicator for monitoring each port
  • Quick, easy installation
  • High Speed HDMI support ensures compatibility with the latest HDMI source devices and displays
  • Signal amplification provides high-resolution HDMI signals without signal degradation/loss of quality
  • Steel enclosure type and metal enclosure material
  • Audio, HDCP, and DDC support
  • Rack mountable
  • Daisy chain capability


  • Connect HDMI enabled projectors, monitors, plasma screens, commercial billboards, and wall display systems
  • Display information in waiting rooms or to patients in healthcare facilities
  • Suitable for business conference rooms and trade show displays, classrooms, and business multimedia presentations
  • Great for digital signage applications displaying video advertisements with audio in retail environments
  • Financial applications include stock tickers or promotion of new products/services

Certifications, Reports, and Compatibility

CE & FCC compliant
UPC: 065030843423

StarTech ST128 Specs

Video SignalHigh speed HDMI (HDMI 1.3)
StandardIndustry: DDC (Pass-through supported on port 1), high speed HDMI, HDCP, EDID
Cabling TypeHDMI
System RequirementsHDMI enabled display device (i.e. monitor, projector, HDTV, more.)
HDMI enabled video source (i.e. computer, Blu-Ray player, PVR/ DVR, more.)
AC electrical outlet (sold separately)
Connector 11: 3.5 mm mini-jack (3-position) female
1: HDMI (19-pin) female
Connector 24: 3.5 mm mini-jack (3 position) female
4: HDMI (19-pin) female
Connector1 x HDMI female (input)
8 x HDMI female (output)
1 x 3.5 mm mini-jack audio (input)
8 x 3.5 mm mini-jack audio (output)
1 x DC Power
LED1 x Power/input
8 x Output
Cable Length50.0' (15.2 m)
ResolutionMaximum Digital: HDTV 1080p / PC 1920 x 1200
Supported Resolutions1080p (1920 x 1080) / VGA (640 x 480) / SXGA (1280 x 1024) / UXGA (1600 x 1200) / WUXGA (1920 x 1200)
SupportedWide Screen: Yes
Power AdapterYes, 9 to 12 VDC, 1500 mA
Input Voltage110 to 240 AC
Input Current800 mA
Output Voltage12 DC
Output Current1.5 A
Center Tip PolarityPositive
Power Consumption10.2 W
Operating Temperature32 to 104°F (0 to 40°C)
Storage Temperature-10 to 60°F (-14 to 140°C)
Humidity0 to 80%
Physical Characteristics
Dimensions17.3 x 7.2 x 1.8" (440.0 x 183.0 x 45.0 mm)
Weight77 oz (2182 g)
Packaging Info
Package Weight7.4 lb
Box Dimensions (LxWxH)23.3 x 10.6 x 3.4"

StarTech ST128 Reviews

I may try this again

By Deb
Rated 4 out of 5
Date: 2016-12-14

The video splitting works great... I've not had luck with the audio extraction. I found it intermittent (if I turned off a display, and back on, the audio would start working, sometimes). I'm unsure if it is a distance limitation, or an issue with the unit, or a design issue that it just doesn't work. I didn't use the little HDMI/USB booster (which is a nice component included with it). For video, it has worked great. I'm running audio back from the displays instead now.

Excellent splitter at a great price poin

Rated 5 out of 5
Date: 2015-01-08

Startech is always my preferred brand for video switching, distribution, adapting, ETC. Great overall quality. A little more pricey sometimes but can't beat the quality when you need it to work

See any errors on this page? Let us know



can i have multiple displays going at once and or isolate displays?
Asked by: Anonymous
Hi, This is only a distribution amplifier... It takes one input and distributes the one input (Audio and Video) to 8 different display or output sources. You'll need a Switcher or Router to isolate any displays or input additional sources. I'd recommend the StarTech brand over most others They make several Switchers/Routers. Thanks! Hope this helps.
Answered by: L Frazer B.
Date published: 2018-08-28
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