Hall Research GEM-EX-R Dual Head 4K HDMI + USB + Audio + RS-232 Receiver with Daisy-Chain Output

SKU: HRGEMEXR MFR: GEM-EX-R
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Key Features

  • Achieve stunning 4K HDMI video distribution with this reliable receiver, perfect for pro setups.
  • Enjoy wide compatibility with HDMI 1.4a, supporting resolutions from 480p to 4K/UHD for crisp images.
  • This receiver supports USB and RS-232, ideal for interactive displays and control system integration.
  • Daisy-chain output simplifies large video setups, reducing cable clutter and setup complexity.
  • Experience crystal-clear audio via the 3.5mm stereo output, enhancing your multimedia presentations.
  • Easy setup with included mounting brackets ensures a secure, professional installation every time.
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Special Order?Estimated to Ship: 09/09/2025
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Hall Research GEM-EX-R Specifications

  • Video Standards

    DVI (single link)
    HDMI 1.4a video specifications including 12 bit color depth, 3D video
    HDCP 1.4

  • Connectors

    2x HDMI Outputs
    1x 3.5MM Audio Output (Stereo Analog), 2x USB-A 1.1 Device Ports , 4x USB-A 2.0

  • Device Ports

    1x RS-232 Dual Port (Splitter required), 1x RJ45 Link Input , 1x RJ45 Link Output 1x 2.1mm Locking DC Power Input

  • Resolutions

    PC: VGA to WQXGA (2560 x 1600)
    HDTV: 480p to 4K/UHD including QHD (2560 x 1440)

  • Refresh Rates

    60Hz for resolutions up to and including HD (1920 x 1080) and WUXGA (1920 x 1200)
    30 Hz for resolutions above and including QHD (2560 x 1440)

  • Power Supply: Current Draw

    100 VAC to 240 VAC, 47-63 Hz, External; 5V DC @ 4A
    1.5A DC depending on # and type of connected USB devices

  • Temp/Humidity

    Storage: -40 to 158 Degree F (-40 to 70 Degree C) / 10% to 90%, non-condensing
    Operating: 32 to 122 Degree F (0 to 50 Degree C) / 10% to 90%, non-condensing

  • Cooling

    Convection

  • Enclosure Type

    Metal (Steel)

  • Safety: EMI/EMC

    CE per IEC/EN 60601-1-2
    CE, FCC Class B

  • Dimensions (L x W x H)

    5.04 x 9 x 1.12" (128.01 x 228.6 x 28.44mm)

  • Weight

    Model Only: 20.8 oz (589.67g)

About Hall Research GEM-EX-R

From professional setups to home entertainment systems, the GEM-EX-R Dual Head 4K HDMI + USB + Audio + RS-232 Receiver with Daisy-Chain Output is a durable and high-quality solution for extending a variety of signals. This advanced receiver is designed to extend USB 2.0, Audio, dual RS-232, and dual display HDMI video, supporting a range of resolutions up to 4K UHD @ 30 Hz and 1080p @ 60 Hz.

This innovative system can transmit these signals to one or more receivers, reaching distances of up to 100 meters (328 ft.) over a single CAT6 cable. The receiver is equipped with two HDMI outputs, six USB ports, an analog audio output, and a dual-port capable RS-232 port.

Designed with versatility in mind, two of the USB ports are optimized for keyboard and mouse use but can also accommodate other USB devices such as KVM switches or touch-screen displays. The audio output is conveniently de-embedded from HDMI A, providing clear and high-quality sound.

For additional connectivity, the receiver offers four general-purpose USB 2.0 ports, perfect for connecting devices like printers or scanners. For enhanced security, USB memory devices are not supported by default, but can be enabled upon request.

The GEM-EX-R Dual Head 4K HDMI + USB + Audio + RS-232 Receiver also features an RJ45 "LINK OUT" port for daisy-chaining to downstream receivers. All signals are re-buffered, allowing the LINK OUT port to drive cables up to 100 meters long.

The RJ45 output ports can also be connected to ULTRA-V Receivers, which provide a single video output and no USB. By default, ULTRA-V Receivers display Video A, but can be configured to display Video B if needed.

Whether you're connecting digital cameras, pro audio & video equipment, or professional gear & musical instruments, the GEM-EX-R Dual Head 4K HDMI + USB + Audio + RS-232 Receiver with Daisy-Chain Output offers a reliable and efficient solution.

Hall Research GEM-EX-R Features

  • Supports high resolution HDMI video including FHD (1920 x1080), WQHD (2560 x1440), and 4K UHD (3840 x2160)
  • Two video streams, one USB port, one audio signal, and two RS-232 ports extended over a single CAT6 cable up to 100 m/328 ft
  • Full plug-and-play support with USB keyboard, mouse, and connected peripherals
  • Computer OS independent - No driver or software required
  • Local HDMI and USB outputs on the Sender
  • Two Sender extension outputs and one Receiver daisy-chain output to distribute video to multiple locations
  • No video calibration required; no video quality reduction due to cable length or resolution
  • Locking power supply connector to prevent inadvertent disconnection

Warranty Information

This product has a limited warranty of 36 months.

Key Features

  • Achieve stunning 4K HDMI video distribution with this reliable receiver, perfect for pro setups.
  • Enjoy wide compatibility with HDMI 1.4a, supporting resolutions from 480p to 4K/UHD for crisp images.
  • This receiver supports USB and RS-232, ideal for interactive displays and control system integration.
  • Daisy-chain output simplifies large video setups, reducing cable clutter and setup complexity.
  • Experience crystal-clear audio via the 3.5mm stereo output, enhancing your multimedia presentations.
  • Easy setup with included mounting brackets ensures a secure, professional installation every time.

What's in the box:

  • Hall Research GEM-EX-R Dual Head 4K HDMI + USB + Audio + RS-232 Receiver with Daisy-Chain Output
  • Mounting Bracket
  • Power Supply
  • User Manual
  • Hall Research 3 Year Limited Warranty