The Galaxy 3.5" Hard Drive Cooler is a reliable cooling unit designed specifically for HDDs. With a single fan to efficiently dissipate heat, this unit operates at 12V and requires a Molex power connection. This lot of 5 coolers from Galaxy offers a cost-effective solution for keeping your hard drives running smoothly and preventing overheating. Ideal for use in computers and networking systems, this HDD cooler from a trusted brand ensures optimal performance and longevity for your storage devices.