Hi, i am interested on your product, just want to get which set of setup is suitable for my house.

1. May i know why do we need to protect the RJ45 network port? If say i am using Unifi and the routers and BTU are both in the surge protector, do i still need to protect RJ45? Mind to explain about it?

2. For astro, if i get MD-FC, what it mean by must be used with SL or SC series? Is it mean i still need another device such as SFTV9622-FC?

3. What is the different between SC0039 and MDSC0039? It is ok to use together with Multi socket on it?

4. All the product cover limited life time warranty? Mean we will bring the surge protector to the office? Would it be possible we buy the part and change it by our own?

Thanks.