StarTech ACFANKIT12 120mm Axial Rack Cooling Fan

Overview

The StarTech ACFANKIT12 is a 120mm axial rack fan designed to push 107 CFM of airflow through network cabinets, server racks, and AV enclosures where heat buildup shortens equipment life. Running on standard 115V AC at 20 watts, it installs without any 12V DC conversion or separate power supply — plug into any rack-mounted PDU and you're done. If you're managing a surveillance head-end room, network closet, or edge compute cabinet that's consistently running warm, this fan addresses the root problem directly rather than relying on passive ventilation.

At 4.7 inches square and 1.5 inches deep, the ACFANKIT12 fits standard 1U or 2U fan tray positions in most 19-inch rack enclosures. The solid metal housing resists the kind of physical wear you'd expect in a working equipment room over years of continuous operation.

Key Features

• 107 CFM Airflow: At 107 cubic feet per minute, this fan moves enough air to actively cool a densely populated 12U–16U rack — not just circulate warm air. That's meaningful when you have NVRs, PoE switches, and UPS units packed together in a confined space.
• 47.5 dBA Noise Level: Loud enough to know it's running, but manageable for server rooms and equipment closets where personnel aren't working continuously. If you're installing in a quiet office or reception area, factor this in — it's not silent-operation territory.
• 3,050 RPM Fan Speed: The 3050 RPM operating speed delivers consistent airflow without the vibration issues that come with ultra-high-speed fans. This is a workhorse speed — enough to move meaningful volume without rattling rack hardware loose over time.
• Ball Bearing Motor: Ball bearing construction significantly extends service life compared to sleeve bearing alternatives, especially in continuous-run environments. Security and network equipment racks typically run 24/7/365 — sleeve bearings in that scenario wear out in 2–3 years; quality ball bearings run considerably longer.
• 115V AC Power Input at 20W: Draws 20 watts from a standard 115V AC outlet — no DC conversion, no 12V wiring, no separate transformer. Connects directly to any rack PDU or standard outlet, keeping installation straightforward and eliminating one more potential failure point.
• -10°C to 70°C Operating Range: Rated to operate from -10°C to 70°C, which covers unheated equipment rooms, outdoor-adjacent telecom enclosures, and high-ambient server environments. The upper 70°C rating also means it keeps running even as the rack interior heats up during peak load.
• 4.7 in × 4.7 in × 1.5 in Form Factor: The 120mm square footprint with 1.5-inch depth is the industry-standard size for rack fan trays. It drops into most 1U fan positions without modification and leaves minimal depth impact inside the cabinet.
• 20.6 oz Weight: At just under 1.3 lbs, the fan doesn't add meaningful load to rack weight calculations — relevant when you're already close to cabinet or floor load ratings in dense deployments.

Integration and Compatibility

The ACFANKIT12 is built around the 120mm industry-standard format, which matches fan tray slots in rack enclosures from most major manufacturers. The 115V AC input is compatible with North American PDUs without adapters. There is no PWM or smart fan control on this unit — it runs at full 3050 RPM continuously once powered. If your rack management system requires fan speed monitoring or variable speed control, you'll need a fan tray controller that supports those features; this fan operates independently at fixed speed.

For surveillance deployments specifically, pairing this fan with a well-organized network video recorder rack improves both equipment longevity and reliability — NVRs running at sustained high temperatures are among the most common causes of storage drive failure in enterprise security installations. Adding a fan like this to a rack enclosure is often the lowest-cost thermal management step available before investing in active cooling infrastructure.

If you're planning a full rack build, review your rack accessories to confirm fan tray compatibility and PDU outlet availability before ordering. For PoE switch and NVR power planning in surveillance racks, the PoE planning guide covers thermal load considerations alongside power budgeting.

Frequently Asked Questions

Q: What voltage does the ACFANKIT12 require?

A: The ACFANKIT12 runs on 115V AC — standard North American wall or PDU power. No DC conversion or transformer required.

Q: Is the fan speed adjustable or does it run at a fixed RPM?

A: The ACFANKIT12 operates at a fixed 3,050 RPM. There is no PWM control or variable speed functionality — it runs at full speed whenever powered.

Q: What is the warranty on the ACFANKIT12?

A: StarTech provides a 2-year hardware warranty on the ACFANKIT12.

Q: Will the ACFANKIT12 fit a standard 19-inch rack enclosure?

A: The 120mm (4.7 in) square form factor fits standard 1U fan tray positions in most 19-inch rack cabinets. Confirm your enclosure's fan tray slot dimensions before ordering, as some OEM enclosures use proprietary sizing.

Q: How loud is the ACFANKIT12 in a working environment?

A: Rated at 47.5 dBA. This is suitable for dedicated equipment rooms and network closets. It is audible and not recommended for quiet office or client-facing spaces where noise is a concern.

Q: What bearing type does the ACFANKIT12 use, and why does it matter?

A: It uses a ball bearing motor, which is more durable than sleeve bearings for continuous 24/7 operation — important in security and network racks that never power down.

Karl Wilson

The spec that stands out to me on the ACFANKIT12 is the 107 CFM airflow rating at only 20 watts of draw — that's a strong efficiency ratio for a rack fan in this form factor. In surveillance head-end builds where you're stacking NVRs, managed PoE switches, and a UPS into a single cabinet, thermal management is often the afterthought that causes the first field failure. This fan addresses it at a low cost and low power overhead.

Technical Highlights:

• 107 CFM at 20W: Moves a serious volume of air per watt — efficient enough that you can run two in a dual-fan tray without meaningfully impacting your PDU load budget.
• Ball Bearing Construction: In 24/7 rack environments, sleeve bearings typically start to fail within 2–3 years. Ball bearings hold up considerably longer under continuous load — this matters in unmanned equipment rooms that go months between physical inspections.
• -10°C to 70°C Operating Range: The 70°C upper limit is the useful spec here — it means the fan continues operating even as internal rack temperatures climb during peak processing load, rather than being a fan that only works when conditions are already ideal.

Deployment Considerations:

• The fixed 3,050 RPM operation means there's no smart speed control — the fan runs full blast from the moment it's powered. In mixed-use facilities, plan its placement in a closed equipment room rather than a shared workspace to avoid noise complaints at 47.5 dBA.
• Verify your enclosure's fan tray accepts standard 120mm mounts before ordering. Some closed rack enclosures from OEM vendors use proprietary fan tray frames that require an adapter or replacement tray.

For a surveillance NVR rack in a commercial building's IT closet — particularly one with limited air conditioning and high seasonal ambient temperatures — the ACFANKIT12 is a straightforward thermal fix that adds minimal complexity and a known 2-year warranty backstop.