Features: High performances 5V USB blower fan delivers efficient cooling with super quiet operation and quality oil-containing bearing design, ideal for maintaining great temperatures in compact electronic devices. Compact 50x50x15mm design, with 4300RPM speed and 3.5CFM airflows for effective heat dissipation in confined spaces. Essential for DIYer enthusiasts and professional managing thermal regulation in 3D printers, PC builds, or server equipment requiring precisions cooling solution. Optimizes airflows in tight compartments like 3D printer extruders, CPU coolers, or small scale electronic enclosures during prolonged high intensities operations. Engineered with oil bearing construction and USB plugs and playing functionality, this 50mm blower fan ensures extended equipment lifespans through stable temperature control. Specifications: Material: Plastic Color: Black Size:Approx. 50x50x15mm/1.96x1.96x0.59inches Cable length: about 95 cm Input: 5V1A Speed: 4300rpm, oil-containing bearing Air volumes: 3.5CFM Package Includes: 1pc Air Blower note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.