One of the key parameters for data centers operation is their uptime. Transients on power lines can easily cause interruptions in operation, data loss, and even equipment damage.  Conventional surge protectors don't do adequate suppressing transients, leaving several hundred volts spikes to get to the servers - please see this page.  OnFILTER' CleanSweep® AC EMI filters not only very effectively suppress EMI on power lines and ground; they are very good in reducing high transient spikes down to very low levels.  They use a different approach than regular surge suppressors - instead of relying on MOV (metal oxide varistors) that utilize voltage levels for suppression of transients, CleanSweep® AC filters treat these spikes as EMI which they are well-equipped to handle; plus the filters are free from typical MOV fatigue rendering MOVs ineffective after some time in service.