<ul><li>12cm USB Fan: USB cooling fan, perfect for cooling various electronics and components, noise only 23dB (Low Speed) while working.</li><li>L/M/H Speed: A speed controller is specially designed to control the airflow level. Meet your different needs.</li><li>High Quality: Dual ball bearing have a lifespan of 45000 hours, 7 blades generate strong airflow to keep the cabinet stay cool.</li><li>Place Anywhere: can be laid flat or stand upright. Great for narrow space: Laptop, receivers, AV electronics and game consoles...</li><li>Full Protection: Aluminum grill on both side protect your hand or prevent damage cord when operating.</li></ul><br><br>ELUTENG 120mm Fan with 3 Speed with 40mm USB Fan with 3 Speed