I've brought a second hand XiaoMi router 4, it cost me 200 dollars.
Why I am willing to buy a second hand product. The reason is that I can't buy from Xiaomi Hong Kong. Also if I go to China to buy. The traffic fare is high.
I succeeded to install it, the Wi-Fi network is faster than using Xiaomi router 3.
I satisfy to the product.
But is it necessary to spend 200 dollars to replace the old one, I must think.