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Black Box ACXMODH2-PS Modular KVM Extender Chassis with Redundant Power Supply
Overview
The Black Box ACXMODH2-PS is the redundant-power-supply variant of the ACX modular KVM extender chassis — the platform choice for broadcast, control room, and mission-critical AV-over-IP environments where chassis power loss cannot be an operational event. By housing dual power supplies in a single chassis, the ACXMODH2-PS eliminates the single point of failure that standard single-PSU chassis introduce, keeping KVM extension links live even during a PSU fault or scheduled maintenance swap. If you are specifying a Black Box ACX modular deployment for a 24/7 operations center or broadcast master control, this is the chassis to start with — not the single-supply model.
The ACX modular architecture is built around a blade-style chassis (often searched as ACXMODH2 PS) that accepts interchangeable transmitter and receiver modules, letting you mix fiber, CATx, and multi-format signal extension cards in a single enclosure. The ACXMODH2-PS chassis itself is finished in black and is designed for rack integration in standard 19-inch equipment bays.
Key Features
- Redundant Power Supply Architecture: Dual PSUs mean a failed supply does not drop the chassis — critical for NOC, SOC, and broadcast control rooms where KVM downtime is measured in revenue or safety impact. Swap a failed PSU without touching the modules or disrupting active sessions.
- Modular Blade Design: The chassis accepts ACX-series transmitter and receiver modules, so you can configure the right mix of signal types (fiber, CATx) for your specific distances and sources rather than buying fixed-port appliances that lock you into one topology.
- Rack-Ready Form Factor: Standard 19-inch rack compatibility means the ACXMODH2-PS drops into existing equipment bays alongside patch panels, switches, and other infrastructure without custom brackets or adapters.
- Commercial-Grade Construction: Black finish, purpose-built chassis — not a consumer or prosumer chassis repurposed for enterprise use. Sourced factory-new with no grey-market, no parallel imports.
Integration and Compatibility
The ACXMODH2-PS is the chassis host — actual signal extension capability, supported resolutions, distances, and protocols are determined by the ACX blade modules you install. Before specifying this chassis, confirm your target blade modules are compatible with the ACXMODH2 chassis generation. Pair with the appropriate KVM extender modules and a managed network switch with sufficient bandwidth headroom if running IP-fabric extension. Consult the KVM selection guide for help matching chassis, modules, and switch infrastructure to your source and destination distances.
Frequently Asked Questions
Q: What is the difference between the ACXMODH2-PS and a standard ACXMODH2 chassis?
A: The ACXMODH2-PS includes a redundant (dual) power supply configuration. The standard chassis ships with a single PSU. If your deployment requires continuous uptime and cannot tolerate a chassis power failure, the ACXMODH2-PS is the correct variant.
Q: Can I hot-swap a failed power supply in the ACXMODH2-PS without powering down the chassis?
A: Redundant PSU chassis of this class are typically designed for hot-swap PSU replacement, but confirm hot-swap capability against the Black Box product documentation for the ACXMODH2-PS before committing to a maintenance procedure.
Q: Which ACX blade modules are compatible with the ACXMODH2-PS chassis?
A: Blade module compatibility is defined by the ACX chassis generation. Consult Black Box's current ACX module compatibility matrix or contact pre-sales engineering to confirm which transmitter and receiver blades are validated for the ACXMODH2-PS chassis.
Q: What rack space does the ACXMODH2-PS require?
A: Rack unit height is not confirmed in the available evidence. Reference the Black Box product datasheet for the ACXMODH2-PS to determine U-height before planning rack space allocation.

The ACXMODH2-PS is the variant of Black Box's ACX modular KVM chassis that adds a second power supply — the single specification change that separates a chassis suitable for 24/7 mission-critical deployment from one that is not. When I spec KVM infrastructure for broadcast master control or a security operations center, redundant PSU is a line-item requirement, not an optional upgrade, and the ACXMODH2-PS covers it within the ACX modular ecosystem.
Technical Highlights:
- Redundant Power Supply: Dual-PSU configuration keeps all installed blade modules operational through a single supply fault — the core value of the ACXMODH2-PS over the base chassis model.
- Modular Blade Architecture: Chassis-plus-modules purchasing model lets you right-size the signal extension mix (fiber vs. CATx, resolution tier, number of ports) without buying a fixed-port appliance that over- or under-provisions the installation.
- Rack Integration: Standard 19-inch form factor means the chassis fits alongside switching and patching infrastructure in existing rack bays — no special mounting hardware required.
Deployment Considerations:
- The ACXMODH2-PS is the chassis host only — budget and plan for the ACX blade modules separately. Chassis cost is one line item; module cost scales with port count and signal type.
- Confirm current ACX module compatibility with Black Box before ordering blades for this chassis generation — the ACX line has evolved across chassis revisions and not all modules are cross-compatible.
The ACXMODH2-PS is the right chassis spec for broadcast control rooms, security NOCs, and government operations centers where KVM infrastructure must remain live through a PSU event without a maintenance window.
Black Box Modular KVM Extender Chassis Redundant - ACXMODH2-PS
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