Gefen ToolBox 4x2 Matrix for HDMI 4K x 2K (Black)
Product #27818 | SKU GTB-HD4K2K-442-BLK | Gefen
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Our Price $1,029.00
Usually ships in 1 - 2 weeks
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  • 4 x HDMI Inputs
  • 2 x HDMI Outputs
  • Resolutions up to Ultra HD 3840 x 2160/30p
  • 3DTV / Lip Sync Pass-Through
  • 12-Bit Deep Colour Support


The black Gefen ToolBox 4x2 Matrix for HDMI 4K x 2K is a compact and lightweight surface-mountable HDMI matrix that allows up to four Ultra HD or 1080p sources to be routed to up to two Ultra HD displays. The matrix supports resolutions up to 3840 x 2160 at 30p. Deep Colour, 3DTV pass-through, and lossless audio formats such as LPCM 7.1, Dolby TrueHD, and DTS-HD Master Audio are also supported. The matrix is ideal for home theatre systems, multi-room installations, retail establishments, sports bars, schools, hospitals, lobbies, or any installation where multi-source Ultra HD HDCP-compliant content needs to be routed to multiple displays.

Connect up to four Ultra HD or HD sources to the HDMI inputs on the matrix using HDMI cables. Each HD source can be routed up to two displays using the front panel push-buttons, IR remote control, RS-232, Telnet, UDP, or web server interface. LED indicators on the top panel display the current routing status, Fast Switching Technology (FST) mode, audio configuration, and EDID settings. A power supply with locking cable comes included.


  • Routes four Ultra Hi-Def sources to two Ultra HD displays
  • Supports resolutions up to Ultra HD (3840 x 2160 @ 30Hz) and Full HD 1080p
  • Supports 12-bit Deep Colour
  • 3DTV pass-through
  • Lip Sync pass-through
  • Push button controls for Routing, FST Modes, Audio, and EDID management
  • Fast Tracking Technology (FST) speeds up HDCP authentication process
  • Advanced EDID Management for rapid integration of sources 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 optional adapters
  • RS-232 Serial interface for remote control using a computer or automation control system
  • IP control via Telnet, UDP, and the built-in web server interface
  • IR remote control
  • Field-upgradeable firmware via Mini-USB and IP ports
  • Locking Power Supply
  • Surface-mountable


Maximum Pixel Clock 300 MHz
Maximum Resolution 3840 x 2160 / 30p
HDMI Input Connectors 4 x Type A 19-pin female, locking
HDMI Output Connectors 2 x Type A 19-pin female, locking
USB Port 1 x Mini-B
RS-232 Serial Port 1 x DB-9, female
Ethernet Port 1 x RJ-45
LED Indicators Power: 1 x LED, blue
FST: 2 x LED, green
Audio: 2 x LED, green
EDID: 3 x LED, green
Routing: 8 x LED, green
Buttons FST Selector: 1 x tact-type, recessed push-button
Audio Selector: 1 x tact-type, recessed push-button
EDID Selector: 1 x tact-type, recessed push-buttons
Routing Selectors: 2 x tact-type push-buttons
IR Sensor On front panel
IR Extender Port 1 x 3.5 mm mini-stereo jack
Power Connector Locking
Power Supply 5 VDC
Power Consumption 13 W, maximum
Operating Temperature 0 to 40°C
Dimensions (W x H x D) 6.9 x 5.8 x 1.0" (17.5 x 14.7 x 2.6 cm)

In The Box

  • Gefen ToolBox 4x2 Matrix for HDMI 4K x 2K (Black)
  • Power Supply with Locking Power Cable


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  • Product: Gefen ToolBox 4x2 Matrix for HDMI 4K x 2K (Black)
  • Manufacturer: Gefen
  • Model: GTB-HD4K2K-442-BLK
  • SKU: GTB-HD4K2K-442-BLK
  • RM Product #: 27818

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