Feed-through RJ-45 to RJ-45 type patch panels are getting more and more popular recently because they offer Plug-and-Play convenience when connecting to switches and routers. A common fact is Feed-Through panels downgrade the transmission performance in the whole cabling.
The answer is Yes and No.
YES – there is no component-rated Feed-Through panel available because there’s no standard for it.
NO – choosing a good Feed-Through panel SP48KMCA would give you equivalent performance that supports all kinds of inter-connection or cross-connection you may possibly encounter on the sites.
Various categories are available in ISO-11801 ClassEa, ANSI/TIA-568.2-D Cat 6A and Cat 6 channel performance.
Depends on different project requirements, you can freely choose the favorable ones to satisfy your actual needs.