Gefen Now Shipping Two New 4K Ultra HD Extenders (GTB-UHD600-HBT and GTB-UHD600-HBTL) That Can Extend Full Bandwidth 600 MHz HDMI 2.0 Over Category Cabling

Staff Writer | January 2, 2018
Press Release

PETALUMA, CALIFORNIA –  Building on its commitment to provide systems integrators with flexible, high performance solutions for signal extension, Gefen today announced that it is now shipping the GTB-UHD600-HBT and GTB-UHD600-HBTL, two new 4K Ultra HD Extenders that can extend full bandwidth HDMI 2.0 over the most widely used extension medium, Category cabling.

“These new 4K Ultra HD extenders address one of the most significant issues that commercial installers face, and that is the extension of full bandwidth HDMI 2.0 over Category cabling – the most widely used extension medium,” said Gefen Product Manager Jason Fitzgerald.  “For corporate, hospitality, retail, education, medical, and any other vertical markets in which content requires extension beyond standard cable limitations, Gefen is making the impossible possible!”

According to Fitzgerald, HDBaseT™’s bandwidth extension limitations frequently prevent the use of the highest 4K video resolution standards and desired HDMI 2.0 specification features like HDR and 4:4:4 Chroma Subsampling at 60 MHz. “Other signal management products such as splitters, switchers, and matrices already fully support HDMI 2.0. Unfortunately, Category cable-based extension products have not kept pace with signal standard innovation,” he explained. “Extension is one of the most common requirements in the AV industry. Integrators need a product that can extend the full capabilities of HDMI 2.0 while using Category cable as the medium.”

The GTB-UHD600-HBT and GTB-UHD600-HBTL help overcome the bandwidth limitations of HDBaseT™. The new 4K extenders employ Gefen’s proprietary compression technology to extend the full 18.2 Gbps bandwidth and 600 MHz TMDS Clock of HDMI 2.0, in resolutions up to 4096×2160 at 60Hz and 4:4:4 Chroma subsampling. “This new compression technology ensures excellent image reproduction and strikes an exceptional balance between quality and cost,” Fitzgerald added.

The new extenders are capable of 4K Ultra HD 60 Hz 4:4:4 (600 MHz) extension. GTB-UHD600-HBT has an extension range up to 80 meters at 4K and 100 meters at 1080p, while the GTB-UHD600-HBTL is rated up to 40 meters at 4K and 60 meters at 1080p. Integral features of HDMI 2.0, such as HDR-10 and Dolby Vision™, are also carried along the single CAT-5 or CAT-6 cable that links the sender and receiver units. Both products are capable of extending 2-way IR. The GTB-UHD600-HBT also supports RS-232 extension for seamless integration of control signals. Gefen’s priopertary Bi-Directional POL (Power over Link) sends power from Sender to Receiver or Receiver to Sender over the link cable, offering the maximum level of flexibility in choosing how each unit is powered. Additionally, integration with Gefen’s Syner-G™ software allows for easy firmware updates.

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About Gefen
Gefen® creates seamless and scalable audio/video signal processing solutions for commercial and residential applications. With a heritage of practical innovation and first-to-market products, Gefen delivers intuitive A/V distribution solutions that bridge the gap between rapidly advancing technology and real-world applications. Gefen is part of the Core Brands family that recently merged with Nice North America.

About Nice North America
Nice North America LLC (NSC) is a global leader in smart connected devices and systems for residential smart home, security, access control, AV distribution, and digital health markets. NSC and its partners have deployed more than 4 million connected systems and over 20 million security and home control sensors and peripherals. Through its family of brands including 2GIG®, ELAN®, GoControl®, Linear®, Mighty Mule® and Numera®, NSC designs solutions for national telecoms, big box retailers, OEM partners, service providers, security dealers, technology integrators and consumers.

Headquartered in Carlsbad, California, NSC has over 50 years of innovation, and is dedicated to addressing the lifestyle and business needs of millions of customers every day. For further information, visit

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