We will be closed for Rosh Hashanah on TUE & WED. Online orders placed Mon 9/22 after 4PM EST - Wed 9/24 will ship Thu 9/25.
Top Rated Gear

StarTech 4-Port 4K HDMI Automatic Video Switch with Aluminum Housing and MHL Support

SKU: STVS421HD4K MFR: VS421HD4K
$71.99
Earn VIP Reward Points

Key Features

  • Seamlessly switch between four HDMI sources with this 4K HDMI video switcher.
  • Enjoy high-resolution video with 4K at 30Hz, perfect for detailed visuals & gaming.
  • Experience reliable connections & automatic switching, simplifying your entertainment setup.
  • Wide compatibility: Supports 7.1 surround sound for immersive audio experiences at home.
  • Easy setup with included remote control and power adapter, ready to use right away!
  • Compact aluminum housing ensures durability and efficient heat dissipation for long life.
See More Product Details
Temporarily On Backorder?Expected Availability: 11/2025Request assistance or get notified
Calculate Shipping

See Options

1

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

rob o : we are looking for a unit that senses various hdmi equipped laptops to one samsung monitor in a boardroom. will your 4 port hdmi auto switch work for this application?
Shopper : Do I understand correctly that this unit can be used with 110-120 United States current?ANDREW R : Yes
Shopper : Why Did You Choose This?MAX C : Automatic switching

Reviews about this item

Review Summary

2020-12-06T08:08:27

Rated 5 out of 5

Great HDMI Switcher

Well made and does the HDMI switching as claimed. So far, I have had no problem with it.

Max C.

2015-03-17T20:00:00

Rated 5 out of 5

Does exactly what it says

Had this for a week now, after trying 2 other 'automatic' HDMI switches (Belkin and One4All). Performs brilliantly. Switches to the right input every time (unlike the others!). Very happy with my purchase.

GaryD

2015-03-04T19:00:00

Rated 5 out of 5

Rock solid, quality switch

I have no need to use the remote or IR port because it auto-switches. It has a high quality premium build quality. LEDs were extremely bright, but I put black electrical tape over it since it doesn't matter to me what HDMI input I'm using (I only need the one at a time, and it auto-switches).

Gord

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Malfunction Protection

Malfunction Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.

StarTech 4-Port 4K HDMI Automatic Video Switch Specifications

  • Audio

    Yes
    7.1 Surround sound

  • Industry Standards

    HDMI 1.4

  • Output Signal

    HDMI

  • Ports

    4

  • Maximum Digital Resolutions

    4K at 30 Hz

  • Supported Resolutions

    3840x2160 (4K)
    2560x1600
    1920x1200
    1920x1080 (1080p)
    1280x720 (720p)

  • Wide Screen Supported

    Yes

  • Connector A

    4x HDMI (19 pin) Female

  • Connector B

    1x HDMI (19 pin) Female

  • LED Indicators

    1x Power LED
    4x Port selected LED (1 / 2 / 3 / 4)

  • Center Tip Polarity

    Positive

  • Input Current

    1A

  • Input Voltage

    100 to 240 AC

  • Output Current

    3A

  • Output Voltage

    12 DC

  • Humidity

    5% to 90%

  • Operating Temperature

    32 to 158 deg. F (0 to 70 deg. C)

  • Storage Temperature

    14 to 176 deg. F (-10 to 80 deg. C)

  • Enclosure Type

    Aluminum

  • Certifications

    RoHS Compliant
    CE
    FC

  • Dimensions (H x L x W)

    0.6 x 5.5 x 3.3" (15.24 x 139.7 x 83.82mm)

  • Weight

    9.7oz (274.99g)

  • UPC Code

    065030859653

About StarTech 4-Port 4K HDMI Automatic Video Switch

FEATURED REVIEWS

Great HDMI Switcher

By Max C.

Well made and does the HDMI switching as claimed. So far, I have had no problem with it.

Does exactly what it says

By GaryD

Had this for a week now, after trying 2 other 'automatic' HDMI switches (Belkin and One4All). Performs brilliantly. Switches to the right input every time (unlike the others!). Very happy with my purchase.

Just imagine the convenience and efficiency of sharing a single display or projector with four HDMI-enabled audio/video source devices. The VS421HD4K 4-port HDMI 4K switch is designed to do just that. This high-quality switch features four independent inputs, each supporting the stunning 4K resolution and immersive 7.1 surround sound audio.

This user-friendly device is not just about sharing; it's about delivering exceptional quality. Experience astonishing picture quality with support for Ultra HD 4K, offering four times the resolution of 1080p. Whether you're using the latest A/V devices or relying on high-definition 1080p, rest assured that this switch will maintain the superior picture quality for your digital signage application.

The VS421HD4K 4-port HDMI 4K switch is housed in solid aluminum, ensuring fixed positioning. This durable construction prevents the unit from shifting, even if the attached HDMI cables are bumped or moved. Its compact design makes it an ideal choice for various settings, including boardrooms, classrooms, home theaters, or digital signage applications.

One of the standout features of this efficient HDMI switch is its MHL support on HDMI input port 1. This allows for video output from MHL-enabled mobile devices like Samsung Galaxy tablets and smartphones.

Enjoy hassle-free operation with automatic 4-port switching. This feature detects and selects a newly connected device, promoting on-the-fly collaboration among colleagues. It's perfect for sharing your projector between multiple source devices in a boardroom or classroom environment.

For those who prefer manual operation, the VS421HD4K also supports this with the included IR remote control or the built-in front panel toggle switch.

The switch also features EDID emulation, ensuring all of your native settings such as resolution and refresh rate are communicated between your display and video source devices. This maximizes compatibility with your 4K display, ensuring a convenient plug-and-play installation.

Whether you're looking to share a 4K television or projector with four different 4K video sources, collaborate on the fly with colleagues, display multiple source devices at different times in digital signage applications, or connect four AV devices to your television in your home theater, the VS421HD4K 4-port HDMI 4K switch is the reliable and efficient solution you need.

StarTech 4-Port 4K HDMI Automatic Video Switch Features

  • 4-port HDMI 4K switch for sharing a single display with multiple devices
  • Supports Ultra HD 4K resolution and 7.1 surround sound audio for superior quality
  • MHL support on HDMI input port 1 for video output from MHL-enabled mobile devices
  • Solid aluminum housing for durable and stable positioning
  • Automatic switching feature for effortless operation and seamless collaboration
  • EDID emulation for maximized compatibility and easy plug-and-play installation

Warranty Information

This product has a limited warranty of 24 months.

Key Features

  • Seamlessly switch between four HDMI sources with this 4K HDMI video switcher.
  • Enjoy high-resolution video with 4K at 30Hz, perfect for detailed visuals & gaming.
  • Experience reliable connections & automatic switching, simplifying your entertainment setup.
  • Wide compatibility: Supports 7.1 surround sound for immersive audio experiences at home.
  • Easy setup with included remote control and power adapter, ready to use right away!
  • Compact aluminum housing ensures durability and efficient heat dissipation for long life.

What's in the box:

  • StarTech 4-Port 4K HDMI Automatic Video Switch with Aluminum Housing and MHL Support
  • IR Cable
  • Remote Control
  • Universal Power Adapter (NA / UK / EU)
  • StarTech 2 Year Warranty