3 Best PCI Expansion Slot Cooling Fans [2024 Updated]

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Imagine your PC’s heart, pumping electronic life through its circuits, growing warmer with every task you throw its way. Now, consider this: what if you could provide a gust of cooling relief right at the source of the heat?

You’re not alone in seeking the answer. As a savvy user, you understand the importance of keeping your system cool, and a PCI expansion slot cooling fan might just be your unsung hero.

Here are NerdTechy’s top picks:

StarTech.com Expansion Slot Rear Exhaust Cooling Fan

If you’re looking to effectively reduce your system’s temperature without breaking the bank, the StarTech.com Expansion Slot Rear Exhaust Cooling Fan is a solid choice, especially for older graphics cards or motherboards prone to overheating.

StarTech-com Expansion Slot Rear Exhaust Cooling Fan

This fan is designed to fit in standard full-height/full-profile computer cases, giving you flexibility in air flow direction, either pulling in from the top or bottom to vent out the rear. Its ball bearing design and inline LP4 power connectors ensure a reliable and straightforward power connection, while the 12V fan operates at 2,200 RPM, moving 6.9 cubic feet of air per minute.

Though it doesn’t support PWM for variable speed control and runs at full throttle, with a noise level of 32 dBA, it’s a trade-off for its cooling efficiency. Plus, with an impressive mean time between failures (MTBF) of over 37,000 hours and a one-year warranty, it’s a durable and cost-effective solution to keep your system cool and stable.

Best For: Individuals with older computer systems experiencing overheating issues who are looking for an affordable and efficient cooling solution.


  • Effective at lowering system temperatures, as evidenced by customer reviews.
  • Ball bearing design and inline LP4 connectors provide a reliable power connection.
  • High MTBF of over 37,000 hours and backed by a one-year warranty for peace of mind.


  • Operates at full speed at all times due to lack of PWM support, which may be noisier than variable speed fans.

Vantec SP-FC70-BL Spectrum System Fan Card

When seeking to enhance your computer’s cooling efficiency, the Vantec SP-FC70-BL Spectrum System Fan Card offers a dual-purpose solution that not only lowers the temperatures of your PCI/AGP components but also improves overall air circulation within your case.

Vantec SP-FC70-BL Spectrum System Fan Card

Crafted from UV sensitive material and equipped with built-in UV LED lights, this fan card doesn’t just perform well—it adds a visually striking element to your setup.

Measuring just over 7 inches in length and weighing a mere 7.2 ounces, the Vantec fan card easily fits into any available PCI slot, with a 4-pin power connector ensuring a simple hookup. Don’t let its compact size fool you; at a maximum 4000 RPM and a wattage of 9 watts, it’s capable of significantly reducing GPU temperatures—from a sweltering 78 °C down to a much cooler 52 °C.

Users appreciate its easy installation and adjustable fan speed, which allows for a quieter operation at lower settings. If your GPU is currently relying on passive cooling or you’re dealing with a noisy or failing fan, this fan card is a recommended upgrade.

Plus, the blue LED/UV light isn’t just for show—it signifies an active effort to keep your system cool and stable.

Best For: PC gamers and enthusiasts who need active cooling for their GPUs and appreciate a visually appealing component with LED lights.


  • Significantly lowers GPU temperatures, enhancing performance and longevity.
  • Easy to install with a standard 4-pin power connector and adjustable fan speed.
  • Dual function of improving air circulation and adding aesthetic value with built-in UV LED lights.


  • Can be noisy at full speed, which may be disruptive for some users.

CCBBAA Fox-2 System Blower

For PC builders seeking to enhance airflow without significant noise, the CCBBAA Fox-2 System Blower stands out with its high air movement capacity at a modest noise level.

CCBBAA Fox-2 System Blower

This cooling fan can move an impressive 60 CFM of air, ensuring that your components stay cool under load. Its Ever Lubricate bearing promises longevity, and at 2800 RPM, it’s designed to be a workhorse.

However, you’ll need to sacrifice two PCI slots to accommodate its size, which mightn’t be ideal if you’re running multiple cards. And while its noise level is low, some users have reported a high-pitched sound that could be bothersome.

It’s a decent choice if you’re looking for a balance between performance and affordability—just make sure to consider the space it requires and the potential noise.

Best For:
PC builders looking for an affordable cooling solution that can move a significant amount of air with a relatively low noise profile.


  • High air flow capacity of 60 CFM to keep components cool
  • Long life Ever Lubricate bearing ensures durability
  • Easy to install in the PC case


  • Occupies two PCI slots, potentially limiting expansion options

Reasons to PCI Expansion Slot Cooling Fan

Installing a PCI expansion slot cooling fan can significantly reduce the temperature within your computer case, enhancing the overall performance and longevity of your system components.

When your PC’s internal environment gets too hot, it can lead to throttling, where your CPU or GPU deliberately slows down to avoid overheating. This means you’re not getting the full potential out of your hardware.


A cooling fan specifically designed for PCI expansion slots works to improve air circulation, directly targeting areas that other cooling solutions might miss. This is especially critical if you’ve got a stack of high-performance cards, like multiple GPUs, which can really generate a lot of heat.

By maintaining a cooler temperature, you’re also reducing the risk of premature hardware failure. Heat is one of the main culprits behind component wear and tear. So, a simple addition like a PCI cooling fan can save you a lot of hassle and money in the long run by avoiding the need for early replacements.

Moreover, it’s not just about safeguarding your hardware; it’s also about sustainability. Cooler systems run more efficiently and consume less power, which is better for your electricity bill and the planet. So, think of a PCI cooling fan as a small investment with a multiplicity of returns.

Frequently Asked Questions

Can I Use a PCI Expansion Slot Cooling Fan in a PCIe Slot Without Affecting the Performance of My PCIe Devices?

Yes, you can use a PCI slot cooling fan in a PCIe slot, and it shouldn’t impact your PCIe devices’ performance, as long as the fan doesn’t physically obstruct or interfere with the devices.

How Do I Determine if My System Requires Additional Cooling?

To determine if you need extra cooling, check your system’s temperatures under load. If they’re high, a PCI expansion slot fan can help lower them, especially during intensive tasks or gaming.

Can PCI Expansion Slot Cooling Fans Be Daisy-Chained or Connected Together to Minimize Cable Clutter?

Yes, you can daisy-chain PCI slot fans to reduce cable mess. Check each fan’s specs to ensure they support this feature and that your power supply can handle the added load.

Is It Possible to Control the Fan Speed of a PCI Expansion Slot Cooling Fan, and if So, How Can I Do This?

You can control the fan speed by using software provided by the fan’s manufacturer or by adjusting settings in your computer’s BIOS. Check the manual for specific instructions on how to do this.

2 thoughts on “3 Best PCI Expansion Slot Cooling Fans [2024 Updated]”

  1. Im used the vantec for my LSI Raid card, those things get really hot when they are in a regular ATX case not being forced fanned like a 2u server.

  2. Is there any such thing as a slot-powered fan? I have a low-profile older PC and it’s GPU sits at the top of the case and gets HOT. No other fans in this POS Acer AX5810! And the PSU is on the bottom, so NO AIRFLOW. A-Holes at Acer! I though of cutting a blowhole in the top, but the case is a d*ck, too.


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