His idea is that you pay two thirds and he pays one third. Then you can tell him that according to the machine, one computer has a mobile phone, and one computer has a mobile phone half (tell him that the mobile phone traffic is low), and then his three computers are naturally three, so he needs two-thirds of the money, and you pay one-third, just the opposite.

PS: In fact, the most reasonable way to share this network cable is to have one person and half. This is just a way for him to unify half of you. If you really can't, just make one yourself. Let him do it himself. After all, according to what he said, making a big one is not much different from making one yourself. He has so many computers and the internet is much wider, so you are uncomfortable to play with.

Continue PS: I just graduated and shared with my classmates. My own network cable is for four people and three computers, and I didn't charge anyone for it. It means that if you are really friends, you don't need to care about money.