Okay, so here's a little piece of server hardware that might just save the day.
This is a used CPU fan with a heatsink, pulled from a working environment.

The original part number is 735513-001, and it's designed for something like a Dell PowerEdge DL580 G8, though the listing says it's compatible with some Acer gear too - always best to double-check your setup!

It's a 45mm fan that spins up to 1500 RPM and pushes about 15 CFM of air to keep things cool.
It runs on 12 volts and connects with a simple 2-pin connector.
The whole unit is about 3 inches long, 5 inches high, and 7 inches wide - it's a decent chunk of metal and aluminum.

The fan itself has a ball bearing, which usually means a longer lifespan and quieter operation than sleeve bearings.

The color is your standard beige/black tech look.

It's an open-box item, meaning it's used but in good shape, just without its original box.

The seller is offering a 1-month warranty just to give you some peace of mind.

If you've got a server that's running hot or a fan that's starting to make noise, this could be a cheap, easy fix.