2 Pack USB to 3Pin 4Pin PWM PC Fan Step-Up Cable, 12V Full Speed Sleeved Power Connector Adapter Cord

This package includes two pieces of USB fan step-up converter cables, specially made to drive standard 12V computer fans via regular 5V USB power sources. The internal boost module steadily upgrades USB 5V input to constant 12V output, allowing cooling fans to run at full rated speed without power shortage or low rotation issues.

It works seamlessly with common 3-pin DC fans and 4-pin PWM speed-adjustable fans. The outer braided sleeved shielding improves durability, prevents wire tangling and reduces wear during long-term use. Integrated intelligent safety circuits effectively avoid circuit damage caused by overload, short circuit or abnormal voltage.

Compact plug-and-play design needs no extra drivers. Great for DIY PC cooling, equipment cabinet heat dissipation, workstation auxiliary ventilation and portable fan setups powered by power banks or laptop USB ports.