Yes you CAN power a 12v PC fan via the GPIO 5v power headers : r/raspberry_pi
GitHub - hamzab70/Raspberry-Pi-Fan-Script: Simple Bash script to control the fan speed using the Rapsberry Pi GPIO and a transistor.
5VDC 40mm Raspberry Pi Cooling Fan - Solarbotics Ltd.
Raspberry Pi 4 Case Fan: Active Cooling for the Official Case | Tom's Hardware
New product: Raspberry Pi 4 Case Fan - Raspberry Pi
Silent cooling for the Raspberry Pi 3 | Climbers.net
The Raspberry Pi 4 has a fan now - the Case Fan | Jeff Geerling
Cooling Fan/Heat Sink for Raspberry Pi - Micro Connectors, Inc.
Raspberry Pi 4 Case Fan - PRT-17368 - SparkFun Electronics
Computer Case Cooler Axial Fan PC CPU Cooling Cooler Fan 12V 40x40x10mm For Arduino Raspberry Pi Computer 3D Printer CF|Instrument Parts & Accessories| - AliExpress
12V 4010 Brushless DC Fan 2Pin 3Pin PC Cooling Cooler Fan for Arduino Raspberry Pi 3D Printer Reprap Ramps 40mm x 10mm Black|Instrument Parts & Accessories| - AliExpress
DC 5V CPU Cooling Fan with Screws for Raspberry Pi 3B 2B B+ 30x30x7mm New - Walmart.com
5v 80mm Cooling Fan 80x80x10mm 8010 DC 2pin Computer Case Raspberry Pi 4 Pcs | eBay
Buy Raspberry Pi Fan Small Computer Fan 30x30x7mm Brushless CPU Cooling Fan for Raspberry Pi 3 B+ at affordable prices — free shipping, real reviews with photos — Joom
RPI SHD FAN40: Raspberry Pi Shield - Fan 40x40mm, for pin header at reichelt elektronik
120mm PC Fan Raspberry Pi Housing by blackhat01 - Thingiverse
Buy Raspberry Pi Fan Small Computer Fan 30x30x7mm Brushless CPU Cooling Fan for Raspberry Pi 3 B+ at affordable prices — free shipping, real reviews with photos — Joom
2 pin cooling fan screws kit 3.3v 5v for raspberry pi 3 retroflag nespi case A0 | eBay
Silent cooling for the Raspberry Pi 3 | Climbers.net
4 Wire PC Fan
Raspberry Pi: Bring the chill to your Raspberry Pi 4 for just US$20 with an ICE Tower CPU Cooling Fan - NotebookCheck.net News
Fan SHIM – Active Cooling for Raspberry Pi 4 - Elektor
The Raspberry Pi 4 has a fan now - the Case Fan | Jeff Geerling
Amazon.com: Waveshare Low-Profile CPU Cooling Fan for Raspberry Pi 4B/3B+/3B with Aluminum Alloy Bracket : Electronics
Using Raspberry Pi to Control a PWM Fan and Monitor its Speed - DriftKingTW's Blog
ICE Tower Raspberry Pi 4 CPU Cooler– The Pi Hut
The Raspberry Pi 4 has a fan now - the Case Fan | Jeff Geerling
Miniature 5V Cooling Fan for Raspberry Pi (and Other Computers) : ID 3368 : $3.50 : Adafruit Industries, Unique & fun DIY electronics and kits
