Everyone talks about servers and routers and racks but I dont see many posts about how you protect your electronics against power outages, power surges or brown outs

I’m using :

Panamax M5300-PM

APC J25B Line Conditioner with 3 hours back up battery for redundancy ( main server /router/ modem connects to this)

APC H15 x 2 Power conditioner

I lost a couple of motherboards because of sudden power surges before deciding to invest into some protection.