4x1 4K/18G HDMI Switcher with De-Embedded Audio Output (Optical/Balanced Audio) and IP Control 
  • HDMI Switching: 2/4 HDMI sources to 1 HDMI output/display
  • Ultra HD/4K: Supports up to 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4 (signals up to 18Gbps bandwidth)
  • HDCP Licensing: Fully licensed and compatible with HDCP 2.2
  • HDR10 and Dolby Vision: More life-like images through a greater range of luminance levels
  • Audio De-embedding®Audio of the selected HDMI input is de-embedded at the analog (3.5mm stereo & L/R balanced/unbalanced) and digital (optical & PCM) connectors
  • Key Digital® App Ready: Scan & detect population for pre-built GUI and TCP/IP control via Key Digital® App
  • KD-AMP220 Control Mode: Command forward to KD-AMP220 for an all-in-one user-friendly control UI of video switching, audio and speech enforcement
  • PTZ USB Camera Integration: Add KD-CAMUSB for full PTZ control via KD-App. Use with KD-XUSB2 extender for USB signal extension over CAT5e/6.
  • Auto-Sensing: Automatic selection of newly detected source and switching from newly disconnected source via hot plug detection voltage when enabled
  • 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
  • Full Buffer System™: Manages TMDS re-clocking / signal re-generation, HDCP authentication to source & display, and EDID Control handshake
  • EDID Management: Internal library with 15 internal EDID handshakes including 4K with HDR in addition to native EDID data copied from the output/display 1
  • TMDS re-clocking: Support for long HDMI connectivity using Key Digital® HDMI cables
  • Lossless Compressed Digital Audio: 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, serial IR, optical IR, RS-232, trigger in, and TCP/IP controllable 
  • Control System Support: Key Digital® App ready. Compass Control® Pro ready. Fully controllable by all IR, RS-232, and TCP/IP supported control systems via open API.


  • HDMI Input (Each): HDMI Connector, Type A, 19 Pin Female
  • HDMI Output: HDMI Connector, Type A, 19 Pin Female 
  • HDMI Bandwidth: TMDS bandwidth 18Gbps 
  • DDC Signal (Data): Input DDC Signal - 5 Volts p-p (TTL)
  • HDMI Video/Audio Signal: Input Video Signal - 1.2 Volts p-p
  • 3.5mm Stereo Audio Output: Line level audio on TRS connector. Drives 1 VRMS line audio output with a sampling rate of 192KHz 
  • Balanced/unbalanced Audio Output: Line level audio on 6-pin terminal block. Drives 2VRMS line audio output with a sampling rate of 192KHz
  • Digital PCM Audio Output: RCA female for digital audio following SPDIF format (IEC 60958). Supports sampling rate up to 192KHz
  • Digital Optical Audio Output: TOSlink optical female for digital audio following SPDIF format (IEC 60958). Supports sampling rate up to 96KHz
  • PCM Max Output Level: 1Vpp on 75Ω, DC coupling 
  • Audio Bandwidth: 20Hz to 20kHz @ 0dBu 
  • TND + Noise: 0.33% @0dBu @ 1kHz 
  • Wired IR: modulated IR signal input, 0-5V TTL or -10 to +10V
  • Power Supply: KD-PS12W5VC 5V/2.4A, 100-240VAC, 50-60Hz, Interchangeable head, screw-in connector 


  • Regulation: CE, RoHS, WEEE, EAC
  • Enclosure: Black Meta
  • Product Dimensions: 8.25” x 4.0” x 1.7” (210.82 x 101.9 x 43.96mm)
  • Packaging Dimensions: 10.75” x 8.9” x 2.2” (275 x 225 x 55mm)
  • Product Weight: 0.9 lb
  • Shipping Weight: 2 lb
  • Power Supply (qty 1) 5V/2.4A, 12W, desktop type, model KD-PS12W5VC
  • IR Remote Control: KD-RMSWPROK
  • Rack Ears: 1x long, 1x short rack ear for mounting in full-width rack
  • 2x 6-pin terminal blocks for control, analog audio
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