Key Digital Addresses Need for Convenient AV Switching

Published: January 24, 2022

Key Digital’s new Presentation Solution family includes a range of three-, two- and single-gang wall-plate/desktop box-mount switcher/transmitters. According to the company, its address the need for convenient AV switching at the source in conference-room, boardroom, lecture-room and training-room applications.

These products also provide a flexible range of input options, local and remote control, CEC display control and signal extension via HDBaseT and proprietary UHDoTP technology. The installation requires zero programming and operation is user-friendly for the entire line.

Features of KD-X4x1WUTx

At the top of the line is the KD-X4x1WUTx. It is a 4×1 4K/18G Wall Plate Switcher featuring front-panel dual HDMI, display port and USB-C inputs. The KD-X4x1WUTx supports Ultra HD/4K up to 4096×2160 at 4:4:4 (signals up to 18 Gbps bandwidth) for no-compromise video performance. Its HDBaseT output natively integrates with Key Digital’s KD-X100MRx black box HDBaseT receiver or the KD-UPS52U presentation switcher. Either of these will provide the switcher/extender power over HDBaseT (PoH). This means the only rear-panel connection required is a RJ45 jack paired with a single CAT5e/6 Ethernet cable for power, signals and IP control. The HDBaseT output can drive 100 meters of cable at full resolution.

The KD-X4x1WUTx fits in a standard three-gang box for wall, podium or table-top AV box mounting. Inputs can be switched manually with front-panel buttons. It also has auto-sensing enabled. Thus, the KD-4x1WUTx will automatically switch to a newly connected source or away from a disconnected source.

According to Key Digital, the KD-X4x1WUTx is not merely a switcher. The front panel additionally features USB host and device ports. These ports are soft-codec-enabled to create a connectivity hub for USB cameras and mics, audio DSP and keyboard/mouse/touchscreen extension. Connected computers interface with extended devices by way of USB host and device ports on compatible receiver units or by way of device ports on the KD-UPS52U Presentation Switcher.

KD App

The KD-X4x1WUTx further simplifies system operation. It does so by including centralized control of displays and projectors – power, volume and muting – through the integration of CEC control and through the free KD App. It also needs no additional wiring.

The KD App thus scans the network and auto-populate pre-built GUIs for connected device management. This includes not just projectors and displays, but all KD App-ready Key Digital devices sharing the network. The free Key Digital Management Software Pro app for Windows computers can realize complete configurations with no programming.

Additionally, the KD-X4x1WUTx handles a host of protocols and interfaces. This includes fully licensed HDCP 2.2, TMDS re-clocking and signal regeneration. It also includes EDID handshake and management, bi-directional RS-232 and TCP/IP control and IR remote sensing. Furthermore it has compatibility with third-party control systems from Compass Control Pro, AMX, Crestron, KNX, RTI, Savant, URC, etc. via Open API. The surround audio formats are supported with de-embedding of two-channel analog signals at the KD-X100MRx receiver.

Also Read: Key Digital Launches Conference Room In a Box Solution

Additional Models

The full family of Wall Plate Switchers includes additional models that feature identical video resolution capabilities. However, they are configured for differing sets of input formats.

The three-gang KD-X3x1WUTx offers HDMI, Display Port and VGA along with external audio inputs with added ARC/eARC audio return support. This is useful for installations where VGA and analog audio input is needed. The KD-X3x1WUTx also features all of the control options found on the KD-X4x1WUTx.

The other wall-plate switcher/transmitter options are the KD-X2x1WVTx (HDMI plus VGA with analog audio inputs) and KD-X2x1WDTx (HDMI plus Display Port) two-gang box wall-plate switchers. Both units offer RS-232 control extension and IR remote sensing and HDBaseT extension up to 40 meters at full resolution.


The final wall-plate switcher in the family was developed to answer user requests for a single-gang box solution. This is particularly useful in installations where only a single-gang box is available in an existing infrastructure. Key Digital’s KD-EXWPSTx offers HDMI and USB-C inputs, selected by push button, auto switching or USB. The KD-EXWPSTx integrates natively with and powered by the KD-EX18GRx receiver. The receiver is sold separately. The switcher/transmitter provides signal extension beyond 35 meters at 18G. Furthermore, it provides a pass-thru mode for uncompressed 10.2 Gbps signal extension. This is done by using Key Digital’s proprietary UHDoTP (Ultra High Definition over Twisted Pair) protocol.

The KD-EXWPSTx video resolution and system control feature set is similar to the rest of the Key Digital family of wall-plate/desktop switcher/transmitters. This includes control via TCP/IP, bi-directional RS-232, IR, USB and Key Digital’s Management Pro software. It also comes with with HDCP 2.2, HDR10, and EDID management compatibility and capability. Additionally, it has support for DTS and Dolby surround audio up to and including 6.1 streams. The KD-EXWPSTx adds 4K to 1080p down conversion to the switcher family’s Ultra HD/4K video capabilities.

The Key Digital family of wall-plate switcher/transmitters and companion receivers/presentation switchers is now available and shipping from stock.

Key Digital is a Mount Vernon, N.Y.-based manufacturer of professional distributed video and control system equipment.

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