Kramer KDS-DEC3 WP-20(B) HDMI/XGA/Ethernet/RS-232/Stereo HDBaseT WP Extender (Transmitter)/Black

The Kramer WP-20(B) is a black wall-plate HDBaseT transmitter built for professional AV installations that need more than a basic source connection. It combines HDMI and XGA source support with Ethernet, RS-232, and stereo audio in a single wall-plate form factor, helping create a cleaner and more organized connection point for fixed installations. For projects that need to extend AV and control signals through an HDBaseT system while keeping the room interface simple and professional, this model is designed to fit that role.

Ideal Use Cases

This model is well suited to installations where multiple signal types need to originate from a convenient wall location and feed into an HDBaseT infrastructure.

• Conference rooms with a mix of HDMI and XGA source devices
• Classrooms and training spaces that still support both newer digital and legacy analog video connections
• Presentation areas requiring Ethernet, RS-232, and stereo audio alongside video transport
• Fixed-install environments where a wall-plate transmitter provides a cleaner finish than loose tabletop adapters or separate interface boxes

Its combination of supported signals makes it especially practical when system designers need to accommodate a range of source and control requirements from one installed access point.

Why Choose This Model

The WP-20(B) stands out by bringing several essential AV and control connections together in one transmitter. Instead of relying on separate wall interfaces for video, networking, control, and audio, this model consolidates those needs into a single unit designed for HDBaseT-based extension.

That approach can help simplify system design at the user connection point while maintaining compatibility with a wider range of installed equipment. Support for both HDMI and XGA is particularly useful in environments transitioning between device generations, where digital and analog source formats may both still be in use.

• Supports HDMI and XGA video formats
• Includes Ethernet connectivity
• Provides RS-232 support for control integration
• Handles stereo audio as part of the signal mix
• Uses a wall-plate form factor for a neat installed appearance

The black finish also suits professional spaces where the visual presentation of the installed hardware matters.

Installation and Integration

As a wall-plate HDBaseT transmitter, the Kramer WP-20(B) is intended for structured, fixed installations rather than temporary setups. It is designed to be placed at the source location, creating a dedicated in-room connection point that integrates into a larger HDBaseT system.

This makes it a strong fit for projects where users need straightforward access to AV connectivity without exposing multiple standalone interface devices. By combining HDMI, XGA, Ethernet, RS-232, and stereo support in one wall-plate unit, it can help reduce clutter at lecterns, meeting room walls, or other presentation positions.

For integrators, the value is in signal consolidation. Video, networking, control, and audio-related connections can be addressed from one installed transmitter, which can support a more organized infrastructure and a cleaner handoff between room inputs and the broader AV system.

Performance Highlights

The core performance advantage of this model is flexibility across signal types. The WP-20(B) supports both HDMI and XGA, making it suitable for mixed-source environments where compatibility matters. In addition to video support, it also includes Ethernet, RS-232, and stereo connectivity, broadening its role beyond simple video extension.

• HDBaseT wall-plate transmitter design
• HDMI support for digital video sources
• XGA support for compatible analog video source needs
• Ethernet connectivity for network-related integration
• RS-232 support for control system applications
• Stereo audio support for installations requiring separate audio transport needs

These features make it a practical transmitter for rooms that need a single, professional-grade interface point rather than a patchwork of separate connection accessories.

What Makes It Different

What separates the WP-20(B) from simpler source plates is its ability to support multiple signal categories in one purpose-built HDBaseT transmitter. Many installed systems need more than a single video input, especially in commercial environments where control, networking, and audio all play a role in the final design.

By combining HDMI, XGA, Ethernet, RS-232, and stereo support, this model addresses that broader requirement in a compact wall-plate format. That can make it easier to build a polished user-facing connection point while preserving the flexibility needed behind the scenes for professional AV integration.

It is also a practical option for spaces that have not fully standardized on one source type. Support for both HDMI and XGA allows the installation to remain useful across a wider range of connected devices.

Final Assessment

The Kramer WP-20(B) is a focused solution for professional AV installations that need a wall-plate HDBaseT transmitter with support for HDMI, XGA, Ethernet, RS-232, and stereo audio. Its value lies in signal consolidation, clean in-room presentation, and compatibility with mixed-device environments. For conference rooms, classrooms, and other fixed installations that require a streamlined connection point with video, control, network, and audio support, this model is a strong fit.