• Startech VS421HD20 4-Port HDMI Automatic Switch - 4K 60Hz
  • Startech VS421HD20 4-Port HDMI Automatic Switch - 4K 60Hz
  • Startech VS421HD20 4-Port HDMI Automatic Switch - 4K 60Hz
  • Startech VS421HD20 4-Port HDMI Automatic Switch - 4K 60Hz
  • Startech VS421HD20 4-Port HDMI Automatic Switch - 4K 60Hz

Startech VS421HD20 4-Port HDMI Automatic Switch – 4K 60Hz


40 in stock

6 weekly interest-free payments from $16.70 with Laybuy

Price Match

Estimated delivery time for items in stock:

  • AUCKLAND1 DayShipping $ 9.20
  • NORTH ISLAND1-2 DaysShipping $ 11.50
  • SOUTH ISLAND1-3 DaysShipping $ 11.50

Can ship same day if order before 2pm (except weekends and public holidays)

SKU: CST271, VS421HD20 Categories: ,
  • Astonishing picture quality with support for 4K 60Hz
  • Hassle-free operation with automatic 4-port switching and an IR remote control included
  • 7.1 surround sound
  • Front-panel toggle-switch button

Product Overview

Startech VS421HD20 4-Port HDMI Automatic Switch – 4K 60Hz

Startech VS421HD20 Description

Startech VS421HD20 4-port HDMI video switch lets you share an HDMI 2.0 display or projector with four HDMI 2.0 video sources. The switch features four independent video inputs that can each support 4K resolution at 60Hz, making it the perfect solution for connecting four video sources to a display that has a limited number of HDMI 2.0 ports.

Astonishing picture quality with support for Ultra HD 4K at 60Hz

The HDCP 2.2 HDMI switch lets you harness the High Dynamic Range (HDR) capability of your HDMI 2.0 video sources and deliver it to your UHD 4K60 display. Unlike many 4K switches that only support a 30Hz refresh rate, this switch works with HDMI 2.0 displays with output resolutions of up to 3840 x 2160p at 60Hz.

Don’t be fooled by a clever spin on old technology. Many HDMI switches support 4K but will only work at a 30Hz refresh rate, or claim support for 60Hz but heavily compress their signal to a lower 4:2:0 chroma subsampling in order to work at inferior bitrates. This 4K 60Hz HDMI switch uses the latest components to offer full support for your HDMI 2.0 equipment, supporting true 4K resolution at 60Hz with 4:4:4 chroma subsampling. Support for HDMI 2.0 devices means this switch can transmit bandwidth up to 18Gbps, making it ideal for high-resolution computer tasks.

The switch is backward compatible with 4K 30Hz and 1080p displays, which ensures that it will work with lower resolution displays such as TVs or projectors around your site or in a digital signage application.

Hassle-free Operation with automatic switching

This switch ensures effortless operation with automatic switching that detects and selects a newly connected device. It’s perfect for automatically switching to a 4K media player such as a 4K UHD Blu-ray™ player as soon as it’s switched on. In your classroom or office boardroom, the automatic switch makes it easy to share your projector between multiple sources, which encourages on-the-fly collaboration among colleagues.

The HDMI switch also supports manual operation, using the included IR remote control or the built-in front-panel toggle switch.

The VS421HD20 is backed by a 2-year StarTech.com warranty and free lifetime technical support.


  • Share 4K60 display with four different video sources
  • Collaborate on the fly with colleagues, by connecting multiple users to the same display and switching between input devices
  • Use in digital signage applications to display multiple source devices at different times

Technical Specifications

Warranty InformationWarranty2 Years
Connector(s)4 – Connector AHDMI (19 pin)
1 – Connector BHDMI (19 pin)
EnvironmentalOperating Temperature0°C to 40°C (32°F to 104°F)
Storage Temperature-10°C to 80°C (14°F to 176°F)
Humidity10% to 85% RH
Industry StandardsHDMI 2.0
Indicators4 – LED Indicatorsinput LEDs
1 – LED Indicatorspower LED
Packaging InformationPackage Height2.1 in [53.0 mm]
Package Length5.9 in [15.1 cm]
Shipping (Package) Weight15.3 oz [434.0 g]
Package Width0.9 in [22.0 mm]
PerformanceMaximum Digital Resolutions4K @ 60 Hz
Supported Resolutions3840×2160 (4K) 60Hz
2560×1600 60Hz
1920×1200 60Hz
1920×1080 (1080p) 60Hz
1280×720 (720p) 60Hz
Wide Screen SupportedYes
Audio Specifications7.1 Surround sound
General SpecificationsLower resolutions are also supported
Physical CharacteristicsWeight of Product5.4 oz [152.0 g]
Product Length4.8 in [12.3 cm]
Product Width2.0 in [51.0 mm]
Product Height0.8 in [20.0 mm]
PowerPower SourceAC Adapter Included
Input Voltage100 – 240 AC
Input Current0.4 A
Output Voltage5 DC
Output Current2000 mA
Plug TypeM
What’s in the Box1 – Included in PackageHDMI video switch
IR remote control (with CR2025 battery)
Universal Power Adapter (NA, EU, UK, ANZ)

Additional Details

Product Manufactured by: Startech

Product Found in: KVM Switches and Cables

Cackle Part Number: CST271

Manufacturer Part Number: VS421HD20


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