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Key Digital hdmi auto switch Front and Rear View
Key Digital hdmi auto switch Front View
Rear View of key Digital 4 port hdmi switch
Key Digital Example Diagram 4 port hdmi switch connected multiple devices
Key Digital hdmi auto switch Front and Rear View
Key Digital hdmi auto switch Front View
Rear View of key Digital 4 port hdmi switch
Key Digital Example Diagram 4 port hdmi switch connected multiple devices

KD-S4x1X-2

4 Input Slim Series HDMI Auto Switcher

  • Connect 4 sources into a single HDMI input port on display or projector

  • Supports 4K HDMI signals up to 18Gbps with HDR, HDCP 2.2, and surround audio up to Dolby® 7.1, Atmos / DTS-HD

  • De-embeds audio for ease of integration with audio systems and soundbars

  • Auto switching or control by push button, the included IR remote or RS-232

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overview
resources
specS & accessories

introduction

The Key Digital KD-S4x1X-2 is a slim-series HDMI switcher offering professional-level quality, performance, and reliability at a cost-effective price point.

Professional AV Installations

Engineered for professional audio-video installations with HDR, HDCP 2.2, and 4K, the KD-S4x1X-2 is ideal for home theaters, gaming spaces, and presentation setups, connecting many video sources to one display, making setup easier with less cabling required.

Additionally, it provides L/R analog and Optical audio de-embed ports to send audio of the selected source to amplifiers, DSPs, or soundbars for enhanced audio quality.

Auto-Switching Convenience

The 4 port HDMI switch offers the convenience of auto-switching to automatically select newly connected or powered sources so users don't have to hassle with manually switching inputs when adding or removing video sources.

Comprehensive Video Support

This HDMI switcher boasts comprehensive video support, covering all SD, HD, VESA, and Ultra HD/4K video standards.

It includes HDR header information in a variety of 4K EDID handshakes, enhancing the visual experience with High Dynamic Range content.

Whether users are working with standard or 4K video sources, the KD-S4x1X-2 ensures compatibility and stunning visuals.

User-Friendly Control

The KD-S4x1X-2 offers flexible control options with a push-button, IR remote, and RS-232 via the included dongle. Additionally, status-monitoring LEDs provide visual feedback, keeping users informed about the active source.

Features

  • HDMI Switching: 4 HDMI sources to 1 HDMI output/display

  • Ultra HD/4K Support: 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4 (signals up to 18Gbps)

  • Audio De-embedding: Audio of the selected HDMI input is output at the digital Optical and analog 3.5mm stereo connectors

  • Auto-Switching: Automatic selection of newly detected source and switching from newly disconnected source via hot plug detection voltage when enabled -

  • Full Buffer System™: Manages TMDS re-clocking / signal re-generation, HDCP authentication to source & display, and EDID Control handshake

  • Surround Audio Support: Dolby® TrueHD, Dolby® Digital Plus, DTS-HD Master Audio™, and Dolby® Atmos

  • CEC Pass-thru: From connected display to selected HDMI source

  • Control: Front panel button, optical IR, RS-232 via Micro USB Port and included adapter cable

Additional Features

  • HDCP Licensing: Fully licensed and compatible with HDCP 2.2

  • HDR10 (High Dynamic Range): More life-like images through a greater range of luminance levels

  • Resolution Support: Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, UXGA) up to 4096x2160p.

  • Deep Color Support: Up to UHD/4K 30Hz 4:4:4/12 bits or 60Hz 4:4:4/8 bit

  • EDID Management: Internal library with 15 internal EDID handshakes including 4K with HDR in addition to native EDID data copied from the output/display

  • Control System Support: Compass Control® Pro ready. Fully controllable by all IR, and RS-232 supported control systems via open API.

downloads

KD-S4x1X-2_CatalogPage.pdf
KD-S2x1-2_KD-S4x1X-2 Manual.pdf
KD-S4x1X-2_hires.jpg

control drivers

KDRMSWPROK_IRProntoHex_0322.doc
Key Digital KD-S4x1X.zip

specifications

Technical:

  • Input (Each): HDMI Connector, Type A, 19 Pin Female
  • Output: HDMI Connector, Type A, 19 Pin Female
  • Bandwidth: TMDS bandwidth 18 Gbps
  • DDC Signal (Data): Input DDC Signal - 5 Volts p-p (TTL)
  • HDMI Video/Audio Signal: Input Video Signal - 1.2 Volts p-p
  • Power Supply: SKO1T-0500100Z, 5V/1A, 100-240VAC, 50-60Hz, Interchangeable head, screw-in connector

General:

  • Regulation: CE, RoHS, WEEE
  • Enclosure: Black Metal
  • Product Dimensions: 7.7 x 3.5 x 0.8" (197 x 90 x 20mm)
  • Packaging Dimensions: 9.4” x 5.6” x 3.1” (240 x 144 x 80mm)
  • Product Weight: 0.9 lb
  • Shipping Weight: 1.3 lb

accessories

  • Power Supply (qty 1): 5V/1A, 5W, wall type, model SKO1T-0500100Z
  • IR Remote Control: KDRMSWPROK
  • Mounting Brackets: 2 L-shaped
  • Control Cable: 6ft RS-232 3.5mm TRS to Micro USB, KD-S2x1XUSB2RS

technical documents

KD-S4x1X-2_CatalogPage.pdf
KD-S2x1-2_KD-S4x1X-2 Manual.pdf
KD-S4x1X-2_hires.jpg

control drivers

KDRMSWPROK_IRProntoHex_0322.doc
Key Digital KD-S4x1X.zip

specifications

Technical:

  • Input (Each): HDMI Connector, Type A, 19 Pin Female
  • Output: HDMI Connector, Type A, 19 Pin Female
  • Bandwidth: TMDS bandwidth 18 Gbps
  • DDC Signal (Data): Input DDC Signal - 5 Volts p-p (TTL)
  • HDMI Video/Audio Signal: Input Video Signal - 1.2 Volts p-p
  • Power Supply: SKO1T-0500100Z, 5V/1A, 100-240VAC, 50-60Hz, Interchangeable head, screw-in connector

General:

  • Regulation: CE, RoHS, WEEE
  • Enclosure: Black Metal
  • Product Dimensions: 7.7 x 3.5 x 0.8" (197 x 90 x 20mm)
  • Packaging Dimensions: 9.4” x 5.6” x 3.1” (240 x 144 x 80mm)
  • Product Weight: 0.9 lb
  • Shipping Weight: 1.3 lb

accessories

  • Power Supply (qty 1): 5V/1A, 5W, wall type, model SKO1T-0500100Z
  • IR Remote Control: KDRMSWPROK
  • Mounting Brackets: 2 L-shaped
  • Control Cable: 6ft RS-232 3.5mm TRS to Micro USB, KD-S2x1XUSB2RS
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