Features: It protects your valuable data by keeping your CPU cool The CPU fan features efficient heat dissipation and low noise Metal material, it is durable in use, high compatibility and excellent compose Keep your computer cool and comfortable on your lap or at your desk with this CPU fan Support work as long as you like without overheating your computer Specifications: Material： Metal Fan for ThinkBook 14S S540-14 Fan Size:as Pictures Package Types: for CPU / for GPU/ For CPU+GPU Power：5V Motor: Brushless Fan Size approx ：for CPU:5.7x5.8cm/2.24x2.28in for GPU: approx 6.6x6.6CM/2.6x2.6in Package Includes: 1 PC CPU Fan （Optional) note: 1.Due to manual measurement, please allow an error of 0-1cm. Please make sure you do not mind before bidding. 2.Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks! 3.Only the cooling fan included.