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NZXT AC-IUSBH-M3 4-Port Internal USB 2.0 Expansion Hub

NZXT AC-IUSBH-M3 4-Port Internal USB 2.0 Expansion Hub

The NZXT AC-IUSBH-M3 solves the problem of limited motherboard headers by expanding a single USB 2.0 port into four dedicated internal connections. It ensures stable power delivery for RGB controllers, AIO coolers, and other peripherals through a dedicated SATA power interface.


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Description

The NZXT AC-IUSBH-M3 is a specialized internal USB 2.0 hub designed to provide reliable connectivity for modern PC builds that demand multiple internal headers. As high-end components like liquid coolers and lighting kits increasingly require dedicated USB communication, this hub acts as a central distribution point, ensuring your system remains fully functional without sacrificing peripheral support.


- PC enthusiasts building systems with multiple RGB and fan controllers that exceed standard motherboard header counts.
- Users installing advanced All-in-One (AIO) liquid coolers that require internal USB for software monitoring and control.
- Small Form Factor (SFF) builders who need to maximize connectivity within constrained internal volumes.
- System integrators looking for a clean, hidden solution to manage internal device cables.
- Legacy hardware users needing to adapt modern internal peripherals to older motherboard layouts.

- Model Number: AC-IUSBH-M3
- Dimensions (with pins): 41mm x 82mm x 20mm
- Dimensions (without pins): 41mm x 82mm x 14mm
- Internal Ports: 4 x USB 2.0 9-pin headers
- Input Port: 1 x USB 2.0 9-pin header
- Power Connection: SATA Power (5V DC)
- Mounting Options: Integrated Magnet and 3M Dual Lock Tape
- Material Composition: Plastic, PCB, and Magnets
- Warranty: 2 Years

Integrating the AC-IUSBH-M3 into a build is straightforward and tool-less. The magnetic body allows the hub to snap instantly onto any steel section of the chassis, while the included 3M dual-lock tape provides a permanent solution for aluminum or plastic surfaces. By utilizing a SATA power connection rather than drawing power from the motherboard header, the hub maintains a consistent 5V signal across all four ports, preventing the device dropouts often associated with passive splitters.

Compared to basic Y-splitters or unpowered internal hubs, the NZXT AC-IUSBH-M3 offers significantly better voltage stability due to its dedicated SATA power input. Its slim 14mm profile is thinner than many generic alternatives, making it easier to tuck behind motherboard trays where cable clearance is minimal. Furthermore, the inclusion of both magnetic and adhesive mounting options provides more versatility than competitors that rely solely on double-sided tape.

- How many internal USB devices can I connect to this hub? You can connect up to four internal USB 2.0 devices using the expansion headers provided.
- Does the NZXT internal USB hub require extra power? Yes, it requires a SATA power connection from your PSU to ensure all connected devices receive stable power.
- Can I use this hub to add more USB ports to the back of my PC? No, this is an internal hub designed for components inside the case, such as lighting controllers and AIO pumps.
- Is the magnetic mount safe to use near my SSD or HDD? Yes, the magnets are designed for chassis mounting and will not interfere with modern solid-state or hard drive storage.
- What happens if my motherboard only has one USB 2.0 header? This hub is the perfect solution, as it takes that single header and turns it into four usable ports.
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