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Hall Technologies ULTRA-4K Dual-Head HDMI and USB 2.0 KVM Extender

The ULTRA-4K is a Dual-Head HDMI and USB 2.0 KVM Extender over just one CAT6 cable to 100m. The ULTRA-4K Sender provides 2 HDMI inputs and one USB port for connection to a host PC.  The Sender provides local HDMI outputs as well as a 2 port USB hub. Remote Receiver connects to the Sender using just one Cat6 cable. The Sender provides 3 RJ45 outputs so more than one Receiver can be connected to allow access to the PC from multiple remote locations.   When more than one Receiver is connected to the same sender, all Receivers show the same two video outputs and keyboard/mouse function is automatically routed based on user activity.

The ULTRA-4K Receiver provides two HDMI video outputs, dedicated keyboard and mouse USB 1.1 ports (with auto switching), and a 4-port USB 2.0 hub for connection of other USB devices such as touch-screens, printers, etc.  Plug-and-Play operation requires no setup, just connect the Sender to the Receiver using a Cat5e/6 cable and you are ready to go! The system supports video resolutions to 3840 x 2160 (UHD/4K), but it also supports and is ideal for applications requiring 2560 x 1600, 2560 x 1440, and 1920 x 1080 resolutions. Other standard HDTV and PC resolutions are also supported. The Receivers also feature an RJ45 loop output for connection to other Receivers for expansion. The RJ45 outputs on both the Sender and the Receiver are also compatible with Single-Head video receiver (Model ULTRA-V-R). The ULTRA-V-R by default will display Video A, but it can be user configured to display video B if desired.

The Ultra-4K system is ideal for high resolution KVM applications requiring computers to be kept in a secure server room and accessed remotely from either single or multiple locations such as in trading rooms in financial institutions or accessing information or monitoring patients in healthcare facilities.

ULTRA-4K example use scenario.


  • Supports high resolution HDMI video including FHD (1920×1080), WQHD (2560×1440), and 4K UHD (3840×2160)
  • Two video heads and one USB port extended over a single CAT5e/CAT6 cable up to 100m/328ft
  • 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 at Sender
  • Three 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 type
  • Locking power supply connector to prevent inadvertent disconnection
  • Sender includes mounting ears for standard 19” rack; Receiver includes mounting brackets for surface-mounting.


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

(2) HDMI Inputs  ,   (2) HDMI Outputs

(1) USB-B Host Port,    (2) USB-A Device Ports
(3) RJ45 Link Outputs
(1) 2.1MM Locking DC Power Input

(2) HDMI Outputs

(2) USB-A 1.1 Device Ports  ,  (4) USB-A 2.0 Device Ports
(1) RJ45 Link Input ,   (1) RJ45 Link Output
(1) 2.1mm Locking DC Power Input

Resolutions DVI Signal VGA (640x480) thru WUXGA (1920x1200)
HDTV Signal 480p through 4K60 4:2:0 (Interlaced resolutions are not supported)
USB ULTRA-4K-S: USB 2.0 (2) from built-in hub
Power Supply 100 VAC to 240 VAC, 47-63 Hz, External; 5 VDC
Temp/humidity Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, non-condensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, non-condensing
Typical DC 5V DC, 4.0 A Power Supply
Current Draw ULTRA-4K-S: 2.5A DC depending on # and type of connected USB devices
ULTRA-4K-R: 1.5A DC depending on # and type of connected USB devices
Cooling Convection
Enclosure type Metal (Steel)
Dimensions ULTRA-4K-S:  6.09" L  x  11.23" W  x  1.66" H
ULTRA-4K-R:  5.04" L  x    9.00" W  x  1.12" H
Product weight Model Only     
ULTRA-4K-S:  2.8 lbs (1.3 kg)
ULTRA-4K-R:  1.3 lbs (0.6 kg)

ULTRA-4K-S:  4.4 lbs (2.0 kg)
ULTRA-4K-R:  3.1 lbs (1.4 kg)
Safety CE per IEC / EN 60601-1-2
MTBF 90,000 hours (estimate)


ManualsVersionsLast Updated
ULTRA-4K-S Manual
  JUNE 24, 2020
Spec SheetsVersionsLast Updated
ULTRA-4K Spec Sheet
  JUNE 24, 2020