Please check the compatible model and compare the sample pictures, make sure this is the correct Cooling Fans you need! Please contact us if you have any issue! *Parameter: 5V,0.5A *Package Include: 1 x Fan, *Compatible Models:for ASUS VivoBook 15 X509 X509F X509FA X509FB X509FJ X509U X509JA M509D M509DA A409UJ A409UJ-BV351T A509FB X409 X409JA X409FJ X409U X409UA FL8700F Y5200F FL8700FJ FL8700D Y5200U Y5200UD Y4200D Y4200F FL8700U laptop P/N:FML0 DFS561405PL0T 13NB0MT0T01311 DC5V 0.5A Fan (4-Pin 4-Wire) . *Applicable scenarios: Solve the error, abnormal noise, and high temperature of your laptop fan, so that your laptop fan can operate normally again! *Special attention: 1.Before replacing the laptop fan, remember to shut down the laptop, remove the plug of the external battery or internal battery of the laptop, and then press the switch button several times to release the static electricity and surplus electricity of the motherboard, so as to avoid damage to the motherboard caused by static electricity.In addition, please be sure to pay attention to the direction of the fan plug, do not plug the anti-fan plug, so as to avoid burning the fan. 2.Please pay attention to check whether the voltage of your laptop CPU&GPU fan is consistent with our fan voltage, because the same model of computer may have different voltage notebook cooling fans. 3.Disassembly is risky, and installation needs to be cautious.If you can’t install it yourself, it’ s best to ask a professional to help install it. You can also find the installation tutorial on the Internet for reference . See moreNote: Please check the compatible models before purchg and compare the sample fan pictures. If you have any questions about what kind of fan you need, please contact us. Worry-free customer service: If you have any questions, please feel free to contact us. We will get back to you in time to help you solve the problem. Please be sure to check the fan diagram and the fan code indicated in the picture!! Laptops with the same model number sometimes may have different types, Please carefully check the displayed picture and fan code to make sure it is the same as your laptop fan picture!!. Compatible models: for ASUS VivoBook 15 X509 X509F X509FA X509FB X509FJ X509U X509JA M509D M509DA A409UJ A409UJ-BV351T A509FB X409 X409JA X409FJ X409U X409UA FL8700F Y5200F FL8700FJ FL8700D Y5200U Y5200UD Y4200D Y4200F FL8700U laptop P/N:FML0 DFS561405PL0T 13NB0MT0T01311 DC5V 0.5A Fan (4-Pin 4-Wire). Replacement a new laptop CPU & GPU cooling fan will allow you to use the laptop to run stably and comfortably, solve the problem of abnormal noise and aging of your laptop cooling fan, solve the problem that the laptop system prompts the fan to not run normally, solve the problem of poor heat dissipation and high temperature of your laptop fan, and can not use the laptop normally so that your laptop fan can operate normally again!. New laptop CPU & GPU cooling fan, fast cooling, low noise, let your computer run at a low temperature, stable temperature,create a noise-free & interference-free environment for you.If you want a quiet, stable, and comfortable office environment for your laptop, this is the perfect choice for you.