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Black Box ACXMODH4R-R2 DKM Extender Receiver Module
Overview
The Black Box ACXMODH4R-R2 is a modular receiver component in the Black Box DKM KVM extension and matrix switching family. DKM (Digital KVM Matrix) systems are designed for AV-over-IP and KVM signal distribution in demanding control room, broadcast, and enterprise environments where operators need to extend and switch high-resolution video, USB, and audio signals across a structured network infrastructure without signal degradation.
The ACXMODH4R-R2 (often searched as ACXMODH4R R2) is a replacement or expansion receiver module intended for DKM chassis-based deployments. As a modular component, it slots into a DKM chassis rather than operating as a standalone unit — buyers should confirm chassis compatibility with the broader Black Box KVM and extension product line before ordering.
Key Features
- DKM Modular Architecture: Slots into a compatible Black Box DKM chassis, allowing incremental expansion of receiver ports without replacing the entire matrix system — cost-effective when scaling an existing installation.
- Replacement and Expansion Ready: Carries the -R2 revision designation, indicating a refreshed component generation. Verify your chassis firmware supports R2 modules before deployment.
- Commercial-Grade Construction: Finished in black, consistent with rack and control room environments where heat dissipation and panel density matter.
Integration and Compatibility
The ACXMODH4R-R2 is part of the broader KVM switching and extension ecosystem. DKM modules are typically paired with compatible transmitters, chassis, and management software — confirm the full system BOM with your integrator before procurement. For signal distribution planning across multi-seat control rooms or broadcast environments, reviewing a KVM extension planning guide can help right-size the chassis and module count before committing to a configuration.
For accessories such as compatible cables, SFP modules, or mounting rails that pair with DKM chassis deployments, see the KVM accessories category.
Note: Detailed electrical specifications, supported resolutions, maximum extension distances, and protocol support are not included in the evidence available for this listing. Contact pre-sales engineering for a full technical datasheet and chassis compatibility confirmation before ordering.
Frequently Asked Questions
Q: Is the ACXMODH4R-R2 a standalone device or does it require a chassis?
A: The ACXMODH4R-R2 is a modular receiver card designed to install into a compatible Black Box DKM chassis. It does not operate as a standalone unit.
Q: What does the -R2 suffix indicate on the ACXMODH4R-R2?
A: The -R2 designation indicates a second hardware revision of this module. Confirm your DKM chassis firmware is compatible with R2 modules before installing.
Q: Can I mix R2 modules with older DKM modules in the same chassis?
A: Mixed-revision compatibility depends on chassis firmware version. Consult Black Box technical documentation or pre-sales engineering to verify before mixing module generations.
Q: Where can I get the full datasheet for the ACXMODH4R-R2?
A: The manufacturer datasheet is available directly from Black Box. Contact pre-sales engineering for a copy and to confirm chassis bill-of-materials compatibility for your specific deployment.

The ACXMODH4R-R2 is a DKM receiver module from Black Box — a slot-in component, not a box you rack independently. The critical thing to understand before ordering is that this module only functions inside a compatible DKM chassis, and the -R2 revision means chassis firmware compatibility must be confirmed upfront.
Technical Highlights:
- Modular Receiver Design: Enables per-port expansion of receiver capacity within an existing DKM matrix chassis — the right call when you're adding operator seats to a control room without a full system replacement.
- Revision Designation (-R2): Indicates a hardware refresh cycle within the DKM line; existing chassis deployments should be firmware-audited before adding R2 modules to avoid compatibility surprises at commissioning.
- DKM Ecosystem Integration: Designed to pair with DKM transmitters, chassis backplanes, and management software — the ACXMODH4R-R2 is one node in a tightly coupled system, not a mix-and-match component.
Deployment Considerations:
- Confirm chassis slot availability and firmware revision support before procurement — the ACXMODH4R-R2 cannot be used outside a DKM chassis environment.
- Full electrical specs (supported resolutions, extension distance, USB protocol support) were not available in the evidence for this listing — request the manufacturer datasheet via pre-sales engineering before finalizing a BOM.
This module is the right procurement path for integrators already running a Black Box DKM matrix in a control room or broadcast environment who need to add receiver capacity to existing chassis infrastructure — not for greenfield deployments where a full DKM system bundle would be the starting point.
Black Box THE DKM Extender Setup Provides THE - ACXMODH4R-R2
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