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Gefen Ultra HD 4K 1:4 HDMI Splitter

Model: GTB-HD4K2K-144-BLK

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About: Gefen Ultra HD 4K 1:4 HDMI Splitter

The GefenToolBox 1:4 Splitter for HDMI 4K x 2K distributes one Ultra Hi-Def A/V source to four Ultra HD displays simultaneously, without loss of quality or resolution. This product works with any Ultra Hi-Def source and supports resolutions up to 4K (3840 x 2160 @ 60Hz 4:2:0) and 4K Cinema (DCI) (4096 x 2160 @ 24 or 30Hz 4:4:4).It features Fast Switching Technology, and supports HDCP, Deep Color, 3DTV pass-through, and lossless audio formats such as Dolby® TrueHD and DTS-HD Master Audio™.


Fast Switching Technology (FST) is a Gefen software implementation for HDMI products. FST eliminates the lengthy HDMI authentication process, and allows connecting/disconnecting or turning ON / OFF of HDTV displays without having these activities affect other displays in the same distribution system.

How It Works

Using the supplied HDMI cable, connect the Ultra Hi-Def source to the HDMI input on the 1:4 Splitter. Connect up to four Ultra HD displays to the HDMI outputs. Connect the included locking power supply to the 1:4 Splitter and to an available electrical outlet. Apply power to the source and displays. The HD source signal will now be seen on all of the connected displays simultaneously.


  • Simultaneously displays an Ultra Hi-Def source on up to four Ultra HD displays
  • Supports resolutions up to Ultra HD 4K (3840 x 2160 @ 60Hz 4:2:0 or 30Hz 4:4:4), 4K Cinema (DCI) (4096 x 2160) @ 24 or 30Hz 4:4:4), and 1080p Full HD
  • HDMI 2.0 compliant
  • HDCP 1.4 compliant
  • Supports 12-bit Deep Color (up to 1080p Full HD)
  • 3DTV pass-through
  • Lip Sync pass-through
  • FST Technology speeds up HDCP authentication process
  • Fast and Slow FST Modes
  • Advanced EDID Management for rapid integration of source and displays
  • Supports LPCM 7.1, Dolby® TrueHD, Dolby Digital® Plus, and DTS-HD® Master Audio™
  • Supports the use of DVI sources and DVI displays with HDMI-to-DVI adapters (not included)
  • Field-upgradeable firmware using Mini-USB port
  • Locking Power Supply
  • Surface-mountable


  • Maximum Pixel Clock: 300 MHz
  • HDMI Input Connector: (1) Type A 19-pin female, locking
  • HDMI Output Connectors: (4) Type A 19-pin female, locking
  • USB Port: (1) Mini-B
  • Power Indicator: (1) LED, blue
  • FST Switch: (1) 2-position slide-type
  • Audio Switch: (1) 2-position slide-type
  • EDID Switch: (1) 2-position slide-type
  • DC Power Connector: (1) Locking type
  • Power Supply: 5V DC
  • Power Consumption: 5 Watts (max.)
  • Operating Temperature: +32 to 104 °F (0 to +40 °C)
  • Dimensions (W x H x D): 3.0" x 9.0" x 1.0" (76mm x 228mm x 26mm)
  • Shipping Weight: 2.7 lbs. (1.2 kg)

UPC: 845344024028 is a Canadian authorized Gefen retailer.

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