Enhance the cooling efficiency of your computer, router, or TV setup with USB Powered Computer Fan. Designed to maintain optimal temperatures, this silent chassis cooler operates efficiently, ensuring that your devices remain cool without adding noise. USB Powered: Convenient USB connectivity provides a hassle-free setup by simply connecting to any available USB port on your devices or power adapters. Ultra-Silent Operation: Engineered to operate quietly, the fan minimizes sound, making it perfect for use in both professional and home environments. Complete Accessory Kit: Includes all necessary mounting screws and a protective net to prevent any damage from external components. Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Type:A:8CM, non-adjustable speed/B:12CM, adjustable speed/C:12CM, non-adjustable speed/D:8CM, adjustable speed Colour:Black Material:ABS Package Contents: 1 * PC Case Fan 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.