Eight white silent mini submersible pumps set for versatile water circulation in a range of applications. Key features and benefits Eight compact pumps designed to deliver reliable water circulation for PC cooling, aquariums, and DIY projects. Each pump operates on DC 3V and 5V, offering flexible low voltage options for compatible systems. Lightweight and compact: 27.2 g per pump, enabling easy installation and placement in tight spaces. Quiet operation suitable for home or office environments, helping to minimize noise disturbance. Submersible design with simple power options: can be powered via USB connection or a mobile charger for convenient use. What makes them stand out Set of eight identical units provides scalable solutions for multipoint circulation or redundant setups. Clear compatibility with common low voltage power sources, including USB power or USB chargers. Consistent performance in small form factors ideal for compact builds and DIY projects. Applications and use scenarios PC water cooling: integrate into a compact or custom loop to improve coolant circulation and heat management. Small desktop aquariums: provide steady water movement to support filtration and aeration. DIY water features and light hydroponic setups: create a small fountain, circulating loop, or miniature irrigation system. Specifications at a glance Color: white Voltage: DC 3V and 5V Weight: 27.2 g per pump Power options: USB connection or mobile charger Applications: PC cooling, aquariums, DIY projects Practical guidance Suitable for users seeking an easy to power, quiet, compact pump solution for low flow circulation in small scale systems.