Introducing our 8pcs Silent Mini Submersible Pump, designed for efficient water circulation in various applications. This mini water pump operates on DC 3V and 5V, making it perfect for use with computer water cooling systems, aquariums, and other DIY projects. With its compact size and lightweight design, each pump weighs only 27.2g, allowing for easy installation and versatility in placement. The silent operation ensures that it won't disturb your environment, making it ideal for home or office use. The pumps can be powered via a USB connection or a mobile charger, providing convenience and flexibility in powering your devices. Whether you're looking to enhance your computer's cooling system or create a small water feature, these pumps deliver reliable performance. The 8-piece set ensures you have enough pumps for multiple projects or replacements. Each pump is crafted with quality materials to ensure durability and longevity. Experience the ease of water circulation with our mini submersible pumps, perfect for hobbyists and professionals alike. Upgrade your cooling system or create a serene water display with our efficient and quiet pumps today! Type:Vertical Colour:Black Material:ABS Package Contents: 8 * Small water pump Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.