Computer fan usb powered: It can run these right off the laptop without an external power source. Usb fan for desk, no funky wiring, just plug it into the PS4 USB port and tuck the wires aside
Small USB fan: This 40mm mini USB computer cooling fan is ideal for DIY cooling in tight spaces, perfect for micro and computer fans, mini and small box fans, USB mini fans, and PS4 cooling
Dimensions: 40 x 40 x 10 mm (1.57 x 1.57 x 0.4 in.)
Voltage Rating: 5V
Airflow: 6.12 ±10%CFM
Sound Level: 25dBA
Operating Speed: 5500 RPM
2 In 1 Usb mini fan: Two 40mm fans with adjustable speed control for computers, home entertainment systems and other electronic devices running at ideal temperatures and optimal speeds
Tiny fan: Suitable for ventilation of VR glasses, TV box, Raspberry pi, Router, Small PC Case, projector, hard hat and other small electronic equipment ventilation