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Key Digital  |  SKU: KD-X444SP | Item: 0101-0139

Key Digital KD-X444SP 4K 18G HDMI over 50m

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MSRP: $245.00
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Product Features

  • Single CAT5e/6 UTP/STP Extension: Fully automatic equalization, and amplification depending on cabling length
  • 4K Resolution Support: 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4 (signals up to 18Gbps bandwidth)
  • Flexible Power over CAT (PoC): Only one power connection needed. Tx may power Rx, or Rx may power Tx.
  • Visually Lossless Compression: 18G enabling technology applied to all video formats exceeding 10.2Gbps to accommodate transmission channel
  • Low Profile: Super slim chassis design
  • Signal Extension: For resolution and cable quality
  • 4K/UHD (18G) / 4K 10G / 1080p with CAT5e/6: Up to 164ft / 50m
  • 10G Pass-thru: Mode enables uncompressed 10.2Gbps signal extension.
  • HDR10 (High Dynamic Range): More life-like images through a greater range of luminance
  • HDCP 2.2: Compliancy up to HDCP 2.x and backward compliant
  • Deep Color Support: Up to UHD/4K 30Hz 4:4:4/12 bits or 60Hz 4:4:4/8 bit
  • IR Sensor: Sensor powering via +5V on IR In ports collects line-of-sight IR from remote(s) without external IR connecting block
  • Up/Down IR: Two channels of IR enable control to/from devices or control systems connected to Tx and Rx units
  • RS-232: Bi-Directional control to/from Tx and Rx unit on Phoenix connector
  • Full Buffer Technology: Key Digital’s proprietary suite of EDID, HDCP, TMDS, and HPD management to overcome Pro AV installation obstacles.
  • EDID Management: Internal library with 14 internal EDID handshakes including 4K with HDR in addition to native EDID data copied from CAT5e/6 or HDMI pass-thru outputs
  • HDCP Authentication: HDCP sources are authenticated by HDCP key on transmit unit, for one-to-one topology
  • Hot Plug Detection Control: Enables integrator to choose if active signal voltage is forced to connected display/output device
  • TMDS Re-Clocking: Re-generation of TMDS (AV signal) channel data at Transmit unit for brand new AV signal
  • Surround Audio Support: Up to Dolby®, DTS™ (formats up to 5.1/6.1)


  • Dimensions:  4.3 x 4.12 x 0.82”
  • Weight:         .595 lbs

Related Files

WARNING: This product my expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

KD-X444SP is a 4K/UHD 18Gbps, HDCP2.2 compliant HDMI over CAT5e/6 Transmitter plus Receiver set for extension of digital video signals with the latest standards in resolution, HDR, and Chroma over a single CAT cable.

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