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Gefen GTB-HD4K2K-848-BLK VGA Switchboxes Gefen 4k Ultra Hd 8x8 Matrix For Hdmi - 4096 X 2160 - 4k - 8 X 8 - Display - 8 X Hdmi Out (gtb-hd4k2 Gtbhd4k2k848blk 818251901133

Part Number: GTB-HD4K2K-848-BLK
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Product Specifications



Gefen 4K Ultra HD 8x8 Matrix for HDMI - 4096 x 2160 - 4K - 8 x 8 - Display - 8 x HDMI Out (GTB-HD4K2K-848-BLK)

4K ULTRA HD 8X8 MATRIX FOR HDMI

Manufacturer Part Number: GTB-HD4K2K-848-BLK

The Gefen ToolBox 8x8 Matrix is a compact and lightweight alternative to rack-mounted matrixes. This HDCP 1.4 compliant matrix routes eight Ultra HD sources to any eight 4K Ultra HD displays with HDMI inputs. Resolutions up to 4K DCI (4096 x 2160 at 24 Hz), 4K Ultra HD (3860 x 2160 at 60 Hz, 4:2:0 color space),1080p Full HD, and 1920x1200 WUXGA are supported. 3D, Deep Color, and multichannel digital audio including 7.1 channels of LPCM and HBR (High Bit Rate) formats such as Dolby TrueHD, and DTS-HD Master Audio are also passed through. The Gefen Syner-G software?s Discovery and Show-Me features simplify initial IP configuration of this matrix. Each source can be routed to any display location, using the front-panel push buttons or the included handheld IR Remote Control. The matrix can also be controlled via RS-232, Telnet, UDP, and Gefen?s intuitive and easy-to-use web server interface.



CPN:4K ULTRA HD 8X8 MATRIX FOR HDMI
MANUFACTURER NAME: Gefen
MANUFACTURER PART NUMBER: GTB-HD4K2K-848-BLK
UPC EAN CODE: 818251901133
LANGUAGE: EN
MARKET:US

General Information:

Route eight 4K Ultra HD sources to eight displays with HDCP. 3DTV, and 7.1 channel LPCM and HBR Audio support

The Gefen ToolBox 8x8 Matrix is a compact and lightweight alternative to rack-mounted matrixes. This HDCP 1.4 compliant matrix routes eight Ultra HD sources to any eight 4K Ultra HD displays with HDMI inputs. Resolutions up to 4K DCI (4096 x 2160 at 24 Hz), 4K Ultra HD (3860 x 2160 at 60 Hz, 4:2:0 color space),1080p Full HD, and 1920x1200 WUXGA are supported. 3D, Deep Color, and multichannel digital audio including 7.1 channels of LPCM and HBR (High Bit Rate) formats such as Dolby®TrueHD, and DTS-HD Master Audio™ are also passed through. The Gefen Syner-G™ software's Discovery and Show-Me features simplify initial IP configuration of this matrix. Each source can be routed to any display location, using the front-panel push buttons or the included handheld IR Remote Control. The matrix can also be controlled via RS-232, Telnet, UDP, and Gefen's intuitive and easy-to-use web server interface. An easy-to-read backlit front panel display indicates the current routing status and IP settings.

How It Works

Use HDMI cables to connect up to eight sources with HDMI outputs to the inputs of the matrix. Connect up to eight displays with HDMI inputs to the outputs of the matrix, using HDMI cables. Connect an Ethernet cable from the network to the RJ-45 connector to use the built-in web server or Telnet/UDP capability to control routing, EDID management, and other functions. Connect an RS-232 cable between an automation control device and the matrix. Connect the included power supply to the 24V DC connector on the matrix. Plug the IEC AC power cord to the power supply and to an available AC outlet. To control the matrix via IR, point the included IR remote towards the display of the unit. If matrix is not located in the line of sight of the handheld remote, attach a Gefen EXT-RMT-EXTIRN IR Extender to the IR Ext port of the matrix and install it in a location where it can receive the IR commands. If this matrix is going to be part of an IP-controlled infrastructure, use Gefen Syner-G™ to perform the initial IP configuration and setup.

ManufacturerNice S.p.A.
Manufacturer Part NumberGTB-HD4K2K-848-BLK
Manufacturer Website Addresshttp://www.gefen.com
Brand NameGefen
Product Name4K Ultra HD 8x8 Matrix for HDMI
Product TypeAudio/Video Switchbox
  Product UPC818251901133
Technical Information:
Connectivity TechnologyCable
Number of Input Devices Supported8
Device SupportedDisplay
Number of Displays Supported8
Video:
Graphics Modes4K
Maximum Video Resolution4096 x 2160
Interfaces/Ports:
HDMI InYes
HDMI OutYes
Connectivity (RJ-45)Yes
Number of Connectivity (RJ-45) Ports1
Number of USB Ports1
Number of HDMI Inputs8
Number of HDMI Outputs8
Physical Characteristics:
Form FactorSurface-mountable
Height17.9"
Width9.3"
Depth1.8"
Weight (Approximate)3.90 lb
Miscellaneous:
What's in the box
  • 4K Ultra HD 8x8 Matrix for HDMI
  • 1 x IR Remote (RMT-848IR)
  • 1 x 24V DC Power Supply (EXT-PS24U375A)
  • 1 x AC Power Cord (CAB-POWERCORD-XX)
  • 1 x Quick-Start Guide (QSG-GTB-HD4K2K-848-BLK)

Date Inserted: Monday January 19, 2026

This product was last updated on Tuesday April 21, 2026

All products are brand new and factory sealed unless otherwise stated.
 *** Disclaimer- Information is supplied by the Manufacturer. The image, including color, may differ from actual product appearance. CompSource, Inc. is not responsible for data. ***

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This Product Has Limited Exchange Privileges.

Limited returns within 30 days of purchase permitted on this product.

For support on this product, please contact Gefen. (800)545-6900 www.gefen.com


Gefen Company's Information

Gefen  
Click Gefen for all products

Toll Free #: (800)545-6900

Site:  www.gefen.com

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    About Gefen

    Gefen is a company that specializes in the production of high-quality audio and video equipment, including extenders, splitters, converters, and scalers. The company has been in business for over 30 years and has built a reputation for offering reliable and innovative solutions for professional and consumer audio and video applications.

    One of the main reasons to consider buying Gefen products is their commitment to quality and performance. The company uses high-grade components and advanced engineering techniques to ensure that their products deliver exceptional audio and video clarity, consistency, and reliability.

    Additionally, Gefen offers a wide range of products to meet various audio and video needs, from simple solutions like HDMI cables and adapters to more complex systems for professional installations. This makes it easier for users to find the right products for their specific requirements and budget.

    Finally, Gefen has a strong customer service team that is committed to helping users get the most out of their products. They offer comprehensive technical support and training, ensuring that customers can quickly and easily set up and use their Gefen products.

    Overall, if you're looking for high-quality audio and video equipment from a reputable brand, Gefen is definitely worth considering.

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