Hall Research GEM-EX-S Dual Head 4K HDMI + USB + Audio + RS-232 Sender with 2-Port Splitter

SKU: HRGEMEXS MFR: GEM-EX-S
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Key Features

  • Achieve stable streaming with this 4K HDMI sender, ensuring your video stays clear and consistent.
  • Enjoy format compatibility with HDMI 1.4a, supporting 12-bit color depth and stunning 3D video.
  • Easily extend HDMI, USB, audio, and RS-232 signals with low latency over distances using this device.
  • This video format converter supports resolutions up to 4K/UHD, including QHD (2560 x 1440).
  • Use the 2-port splitter for dual HDMI outputs, perfect for simultaneous display setups and presentations.
  • High resolution output ensures your content looks its best, from VGA to WQXGA (2560 x 1600) displays.
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Special Order?Estimated to Ship: 09/08/2025
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Hall Research GEM-EX-S Specifications

  • Video Standards

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

  • Connectors

    2x HDMI Inputs, 2x HDMI Outputs
    1x 3.5MM Audio Input (Stereo Analog), 1x USB-B Host Port, 2x USB-A Device Ports
    1x RS-232 Dual Port (Splitter required), 2x RJ45 Link Outputs, 1x 2.1MM Locking
    DC Power Input

  • 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
    2.5A 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)

    6.09 x 11.23 x 1.66" (154.68 x 285.24 x 42.16mm)

  • Weight

    Model Only: 2.8 lbs (1.3kg)

About Hall Research GEM-EX-S

Just imagine the power and convenience of extending USB 2.0, Audio, dual RS-232, and dual display HDMI video signals to multiple locations with the GEM-EX-S Dual Head 4K HDMI + USB + Audio + RS-232 Sender with 2-Port Splitter. This advanced system supports a wide range of resolutions, including 1080p @ 60 Hz and 4K UHD @ 30 Hz, ensuring high-quality video transmission.

The Sender unit is equipped with two HDMI inputs, a USB input, an analog audio input, and a dual-port RS-232 port, making it perfect for connecting to a dual-head PC. The audio input is cleverly embedded into HDMI A for seamless integration.

Designed with user convenience in mind, the Sender provides two local HDMI outputs that correspond to the two HDMI inputs. It also features an internal USB hub with two local USB outputs, offering more connectivity options.

The system is capable of extending these signals up to a distance of 100 m (328 ft.) over a single CAT6 cable. It also includes two separate RJ45 output ports, allowing you to extend these signals to multiple remote locations.

For added functionality, the system comes with four additional general-purpose USB 2.0 ports, perfect for connecting other USB devices such as printers or scanners. Please note that for security reasons, USB memory devices are not supported by default.

In a setup with one Sender and one Receiver, the USB ports automatically pair. However, in a setup with multiple GEM-EX Receivers, only one Receiver can be paired at a time. This pairing is easily accomplished using a push-button on the front panel of the Receiver, with a corresponding LED indicating the USB pairing status.

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

The GEM-EX-S Dual Head 4K HDMI + USB + Audio + RS-232 Sender with 2-Port Splitter is a versatile and powerful solution for extending your digital signals to multiple locations.

Hall Research GEM-EX-S 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'
  • 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 stable streaming with this 4K HDMI sender, ensuring your video stays clear and consistent.
  • Enjoy format compatibility with HDMI 1.4a, supporting 12-bit color depth and stunning 3D video.
  • Easily extend HDMI, USB, audio, and RS-232 signals with low latency over distances using this device.
  • This video format converter supports resolutions up to 4K/UHD, including QHD (2560 x 1440).
  • Use the 2-port splitter for dual HDMI outputs, perfect for simultaneous display setups and presentations.
  • High resolution output ensures your content looks its best, from VGA to WQXGA (2560 x 1600) displays.

What's in the box:

  • Hall Research GEM-EX-S Dual Head 4K HDMI + USB + Audio + RS-232 Sender with 2-Port Splitter
  • Mounting Ears
  • Hall Research 3 Year Limited Warranty