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Black Box ACX2MR-DP4KHS-SM Modular KVM Extender Receiver
Overview
The Black Box ACX2MR-DP4KHS-SM is a modular KVM extender receiver designed for high-security, high-resolution desktop extension environments. As part of Black Box's KVM and signal extension line, the ACX2MR-DP4KHS-SM targets installations where workstations must be physically separated from operator consoles — a common requirement in secure operations centers, broadcast control rooms, military facilities, and financial trading floors.
KVM extension architectures allow computing hardware to be locked in a secure machine room or equipment closet while operators interact with full-fidelity video, keyboard, and mouse signals at a remote console. The receiver module is the operator-side unit in that architecture — it decodes and presents the transmitted signal at the workstation desk, keeping sensitive hardware away from general access areas.
The ACX2MR-DP4KHS-SM (often searched as ACX2MR DP4KHS SM) carries the "HS" designation within the Black Box ACX2 modular platform, indicating a high-security variant intended for classified or compliance-sensitive environments where peripheral signal isolation and tamper-resistance are deployment requirements. The modular form factor means this receiver pairs with a matching transmitter and can be configured within the broader KVM extender ecosystem that Black Box has built around the ACX2 chassis.
If your project calls for extending DisplayPort 4K signals over fiber or CATx while maintaining strict peripheral access controls, consult pre-sales engineering to confirm the correct transmitter pairing, fiber type, and maximum extension distance for your specific run lengths before ordering.
Key Features
- Modular ACX2 Platform: The receiver slots into the ACX2 modular chassis, allowing you to mix signal types and scale port counts without replacing the entire unit — relevant for phased buildouts in operations centers.
- High-Security (HS) Designation: The HS variant is positioned for environments requiring peripheral isolation and enhanced access control at the signal level, reducing the attack surface compared to standard KVM configurations.
- DisplayPort 4K Support: Extends 4K DisplayPort video to remote operator consoles, preserving full resolution at the desk without requiring the workstation to be co-located — critical for CAD, video production, or intelligence analyst workstations.
- Remote Console Separation: Keeps computing hardware in a locked equipment room while operators work at a clean desk — a standard requirement for secure KVM deployments under government and financial compliance frameworks.
Integration and Compatibility
The ACX2MR-DP4KHS-SM is a receiver module within the Black Box ACX2 platform and requires a compatible ACX2 transmitter at the source end. Verify transmitter model compatibility, fiber or copper medium requirements, and chassis slot availability with Black Box documentation or pre-sales engineering prior to procurement. This is not a standalone device — it operates as part of a matched transmitter-receiver pair within a supported AV and KVM distribution architecture.
Frequently Asked Questions
Q: What does the ACX2MR-DP4KHS-SM receiver connect to?
A: The ACX2MR-DP4KHS-SM is a receiver module in the Black Box ACX2 modular KVM extender platform. It requires a compatible ACX2 transmitter at the source (workstation) end. Consult Black Box documentation to confirm the correct transmitter pairing for your signal type and extension distance.
Q: What does the "HS" designation mean on this model?
A: The "HS" suffix indicates a high-security variant within the Black Box ACX2 product family. These models are positioned for classified, government, or compliance-sensitive environments where peripheral isolation and enhanced signal security are required.
Q: Is the ACX2MR-DP4KHS-SM a standalone unit?
A: No. It is a modular receiver that operates as part of a matched transmitter-receiver pair within the ACX2 platform. It requires a compatible chassis and transmitter to function.
Q: What video format does the ACX2MR-DP4KHS-SM support?
A: The model designation indicates DisplayPort 4K (DP4K) support. Confirm exact resolution, refresh rate, and color depth specifications with the Black Box product datasheet before deployment.
Q: Can the ACX2MR-DP4KHS-SM be used in a fiber-based extension run?
A: The ACX2 platform supports both fiber and copper medium options depending on the specific transmitter and receiver configuration. Verify the supported medium for this model with Black Box technical documentation or pre-sales engineering.

The ACX2MR-DP4KHS-SM sits at the operator console end of a high-security KVM extension pair — the piece of the architecture that most integrators underspecify. Choosing the wrong receiver variant (standard vs. HS) in a cleared-facility or financial compliance deployment is the kind of procurement mistake that costs weeks of rework, so the HS designation here matters more than it might appear on a spec sheet.
Technical Highlights:
- High-Security (HS) Variant: Positioned specifically for environments requiring peripheral signal isolation — the HS line addresses compliance requirements that standard KVM extenders do not meet, reducing the peripheral attack surface at the operator console.
- DisplayPort 4K (DP4K) Signal: Extends full 4K DisplayPort video to the operator desk without co-locating the workstation — the correct architecture for CAD, ISR, and high-resolution analytical workstations in secure facilities.
- Modular ACX2 Platform: The receiver-only module format allows incremental buildout — add operator consoles without replacing transmitters or chassis, which matters in phased secure-room expansions.
Deployment Considerations:
- This is a receiver module only — it requires a matched ACX2 transmitter at the source end and a compatible chassis. Confirm the full BOM (transmitter model, chassis, fiber or copper medium, and any SFP modules) before procurement to avoid a partial system on site.
- Specification data available at time of listing is limited — obtain the Black Box ACX2MR-DP4KHS-SM product datasheet directly from Black Box to confirm maximum extension distance, supported resolutions, USB peripheral support, and latency figures before committing to a design.
The ACX2MR-DP4KHS-SM is the right receiver to specify for secure operations centers, government SCIFs, or financial trading floors where 4K DisplayPort extension and peripheral isolation are both hard requirements — not a general-purpose KVM receiver for standard enterprise deployments.
Black Box Modular KVM Extender Receiver - ACX2MR-DP4KHS-SM
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