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Black Box ACX1T-12A-SM Compact KVM Extender Transmitter
Overview
The Black Box ACX1T-12A-SM is a compact KVM extender transmitter designed to extend keyboard, video, and mouse signals from a source workstation to a remote receiver unit. In deployments where operators need to control computers from a distance — control rooms, broadcast suites, secure server environments, or AV switching installations — a dedicated KVM extender transmitter eliminates the cable-length and signal-degradation limits of direct connections.
The ACX1T-12A-SM (often searched as ACX1T 12A SM) ships in black and is part of Black Box's ACX extender family, a line built for integrators who need reliable, low-latency KVM signal transport in professional environments. For a broader view of available extender and switching products, explore the Black Box catalog.
Key Features
- Compact Transmitter Form Factor: The transmitter-only design pairs with a compatible ACX receiver, keeping the source-side footprint small — useful when rack space or under-desk mounting is constrained.
- KVM Signal Extension: Extends keyboard, video, and mouse over structured cabling or fiber (confirm the specific signal type and maximum distance with the full KVM extender product documentation before deployment).
- Black Chassis: Matches standard rack and AV equipment finishes, appropriate for control room and broadcast environments where equipment aesthetics matter.
Integration and Compatibility
The ACX1T-12A-SM is a transmitter unit and requires a paired Black Box ACX receiver to complete the extension link. Verify receiver compatibility within the ACX product family before ordering. For installations involving KVM switches or matrix switching, confirm that the ACX extender series supports your required switching topology. If you are building out a broader AV-over-IP or network infrastructure deployment, consult Black Box's compatibility matrix for the ACX line to ensure the transmitter matches your video format and cabling plant.
Frequently Asked Questions
Q: What receiver is compatible with the ACX1T-12A-SM?
A: The ACX1T-12A-SM is a transmitter unit designed to pair with a compatible Black Box ACX-series receiver. Consult Black Box's ACX extender compatibility documentation to identify the correct receiver model for your signal type and distance requirement.
Q: What cable type does the ACX1T-12A-SM use for signal extension?
A: Specific cabling requirements (fiber, CATx, or other) depend on the ACX sub-variant. Verify the cabling specification in Black Box's product documentation for the ACX1T-12A-SM before infrastructure planning.
Q: Can the ACX1T-12A-SM be rack-mounted?
A: The ACX1T-12A-SM has a compact chassis. Mounting options depend on whether a rack adapter bracket is used — confirm mounting accessories with Black Box or your distributor at time of order.
Q: Is the ACX1T-12A-SM TAA or NDAA compliant?
A: TAA and NDAA compliance status for the ACX1T-12A-SM is not confirmed in available product data. Contact Black Box directly or request documentation if compliance is a procurement requirement.

The ACX1T-12A-SM is the transmitter half of Black Box's ACX compact KVM extender pair — the component that sits at the source (CPU or workstation) side and sends keyboard, video, and mouse signals down the link to the remote receiver. If you are speccing a control room or secure operations environment where the compute hardware needs to live in a locked rack or server room while operators work from a separate console, this is the unit anchoring the source end of that architecture.
Technical Highlights:
- Transmitter-only unit: Purpose-built as the source-side device in an ACX extender pair — keeps the deployment clean by separating transmit and receive functions rather than using a single all-in-one unit that introduces unnecessary signal path complexity.
- Compact chassis in black: The physical footprint is sized for tight installations — under-desk, behind a display, or in a small rack shelf — without requiring a dedicated 1U slot for the transmitter alone.
- ACX family integration: Sits within Black Box's broader ACX extender ecosystem, which spans multiple signal types and distances, giving integrators a consistent platform to scale across a multi-seat control environment.
Deployment Considerations:
- The ACX1T-12A-SM is a transmitter only — you must order the correct paired ACX receiver separately. Confirm the receiver model number against Black Box's ACX compatibility matrix before procurement to avoid mismatched signal types or distance ratings.
- Signal type (fiber vs. CATx), maximum extension distance, and supported video resolutions are determined at the ACX sub-series level, not visible from the transmitter model number alone — pull the full datasheet before committing infrastructure cabling.
The ACX1T-12A-SM is best suited for secure operations centers, broadcast control rooms, or government facilities where physical separation of compute hardware from operator consoles is a design requirement — not a convenience feature.
Black Box Compact KVM Extender Transmitter - - ACX1T-12A-SM
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