USB-C WallPlate HDBaseT Transmitter, Ethernet, RS-232, IR

The Kramer WP-789T is a 1-gang USB-C wall-plate transmitter for extending video and audio through an HDBaseT installation. It combines HDMI and HDBaseT functionality with Ethernet, RS-232 and IR connectivity. The listed performance specification is 4K video at 60 Hz with 4:2:0 chroma sampling, while PoE is identified as a power feature.

Ideal Use Cases

This model is suited to professionally installed AV systems that need a permanent, accessible USB-C connection point at the wall. Potential applications include meeting, presentation and instructional spaces where source equipment must connect to a remote video and audio system through an HDBaseT transmission path.

Ethernet, RS-232 and IR connectivity also make the transmitter relevant to installations that combine media transport with network and control requirements. The wall-plate format is especially useful when a fixed connection point is preferred over placing a freestanding transmitter on a table, lectern or other work surface.

Why Choose This Model

The WP-789T brings several installation functions together in a compact 1-gang format. USB-C provides the specified source-side connection, while HDMI and HDBaseT support the listed video and audio extension role. Ethernet adds a network connection, and RS-232 and IR provide interfaces commonly required when integrating source, display and control equipment.

Its listed 4K60 4:2:0 capability provides a concrete performance target for system planning. PoE is also identified in the supplied specifications, allowing integrators to evaluate the unit for a design that incorporates power over the connected infrastructure. Exact powering requirements and compatible receiving equipment are not stated in the available data.

Installation and Integration

The 1-gang wall-plate construction is the defining installation feature of this model. It creates a dedicated connection point that can be incorporated into a wall-based AV layout while keeping the transmitter associated with the room infrastructure. Placement should account for access to USB-C, the HDBaseT signal path and any Ethernet, RS-232 or IR connections required by the system.

Before installation, confirm the intended receiver, cable requirements, available PoE arrangement and compatibility with the other components in the signal chain. The supplied information does not state transmission distance, cable category, connector quantities, power consumption or included accessories. It also does not specify RS-232 or IR operating details, so those requirements should be matched against the complete system design before ordering.

Performance Highlights

The source specifications identify 4K60 video with 4:2:0 chroma sampling and a refresh rate of 60 Hz. This gives designers a defined video format to compare with the capabilities of the source, receiver and display. HDMI is listed alongside HDBaseT, establishing the product as a video and audio extension component rather than a general-purpose USB-C wall outlet.

No claims are provided for HDR, HDCP version, 4K at 120 Hz, alternative color-sampling formats, input lag or supported transmission distance. Those characteristics should therefore not be assumed from the 4K60 listing alone. For dependable operation, every component in the path should be selected around the stated 4K60 4:2:0 format and the project’s required interfaces.

What Makes It Different

The WP-789T distinguishes itself through its combination of a wall-mounted USB-C connection, HDMI and HDBaseT extension, Ethernet, RS-232 and IR. Rather than addressing only video transport, its listed interface set supports an installation that may also require network access and external control connections.

The 1-gang configuration concentrates these capabilities into an architectural wall-plate format. PoE further defines the integration profile of the model, while the WP-789T/US-D(W/B) designation identifies the specific version represented by the supplied product data.

Final Assessment

The Kramer WP-789T is a focused choice for an HDBaseT system requiring a 1-gang USB-C wall-plate transmitter with HDMI, Ethernet, RS-232 and IR connectivity. Its documented performance is 4K at 60 Hz with 4:2:0 chroma sampling, and PoE is included among the listed features.

It is best evaluated as part of a complete, compatible extension system. Confirm the receiver, cabling, powering method and any unlisted format or control requirements before purchase. For projects aligned with its stated interfaces and video format, the WP-789T provides a compact connection endpoint designed for integrated AV installation.