insufficient fans headers

I am building a pc i am going to use a msi B850M-G, it has only 2 fan headers and 1 cpu fan and 1 pump fan , i am usingg the cpu fan with the air cooler , the problem is that my case has 3 fans so i have 2 solutions: 1 to use the pump header , 2- to use a spliter so i can connect 2 fans on 1 header annd the other fan alone (case: DarkFlash Aigo D275M)

https://preview.redd.it/8kahez61gulg1.png?width=1335&format=png&auto=webp&s=43eaca745aa477525894a494990dfc9a9705979d