Yes you CAN power a 12v PC fan via the GPIO 5v power headers : r/raspberry_pi
Amazon.com: Pinfox 12V DC 120mm Quiet Cooling Fan Silent, Variable Speed Control by 5V to 12V Input, Dual Ball Bearings 3 Pin for PC Computer Case, Home Theater Cabinet, Receiver DVR Xbox,
Einsy Rambo 5v to 12v fan
10PCS DC Brushless Cooling PC Computer Fan 12V 8020s 80x80x20mm 0.15A 2 Pin Wire - Walmart.com
BIQU 3010 4010 LED Cooling Fan 5V 12v 24v Silent Luminous Hydraulic Bearing Fan | eBay
4010 40X40X10mm Brushless Cooling Fan Cooler 5V 12V 24V DC 2 Pin – Makers Hut
5V DC Fan 30x30x10 Mm | Electronics For You
2 buc/lot gdstime 6015 60mm 5v 12v 24v 2pin 3pin usb fan 60x60x15mm 6cm brushless dc ventilatoare de răcire cpu cooler pentru calculator pc caz vanzare < Componente De Calculator \ Bivoli.ro
5pcs Noi 3007 30mm 3 Cm 30*30*7mm 5v 12v Imprimantă 3d Fan Graphics Card De Fan Ventilator De Răcire Laptop In Miniatura Liniștită M. 2 Hd Fan 5pcs | Componente de calculator / www.ssmregis.ro
Gdstime 120mm Fan Dc 5v 12v 24v 48v 120x120x25mm Sleeve/ball Cooling Fan 12025 12cm Pc Laptop Computer Case Brushless Cooler Fan - Fans & Cooling - AliExpress
5V Brushless DC Cooling Fan - 40 x 40mm Raspberry Pi Compatible Fan - BC Robotics
Pi4 12V fan on 5V pins - Raspberry Pi Forums
Cumpără Componente de computer | 120mm 12cm 12025 Fan 5V 12V 24V 120mm*120mm*25mm Fan DC Brushless Cooling Fan 120x120x25mm USB 2PIN PC Computer Case Cooler
Pi4 12V fan on 5V pins - Raspberry Pi Forums
Turbine Fan 5v 12v 24v 40mm * 10mm 4010 Dc Turbo Fan 5v Bearing Blower Radial Cooling Fans For Creality Cr-10 Kit 3d Printer - 3d Printer Parts & Accessories - AliExpress
2Pcs YOUNUON 25mm 5V 12V Cooling Fan 25mmx25mmx7mm DC Brushless Mini Cooler Fan 2507 25x7mm Cooling Radiator Heatsinks Fan|Fans & Cooling| - AliExpress
40x40x10 4010 Small Dc Brushless Computer Cpu Cooling Fan 5v 40mm 12v Waterproof Fan - Buy High Quality 4010 Small Dc Brushless Fan,Computer Cpu Cooling Fan,40mm 5v Waterproof Fan Product on Alibaba.com
How to convert 12v to 5v CPU Fan।।SMPS Fan।। - YouTube
5v To 12v Usb Fan Speed Controller Control Switch Fan Stepless Module Adjustable Potentiometer Male Female Adapter Board - Integrated Circuits - AliExpress
Powerful 5V fan from 12V fan - YouTube
DC 5V 12V 24V 3010 Fan Cooling Brushless Mini Fan 30*30*10MM Cable 17C | Biqu Equipment
5pcs Noi 3007 30mm 3 Cm 30*30*7mm 5v 12v Imprimantă 3d Fan Graphics Card De Fan Ventilator De Răcire Laptop In Miniatura Liniștită M. 2 Hd Fan 5pcs | Componente de calculator / www.ssmregis.ro
3010 Cooling Fan 3d Printer | 3d Printer Fan 12v 3010 | Dc 5v Cooling Fan 3010 - 3010 - Aliexpress
NF-F12 5V 1500RPM 120mm Premium Grade Fan
Controlling 12V PWM fan using 5V arduino with potentiometer - Project Guidance - Arduino Forum
transistors - How can I use USB output (5V DC) to power a fan 12V DC load? - Electrical Engineering Stack Exchange
