The main difference to the NexXxoS ST30 lies in the internal structure and cooling performance. The HPE-30 radiator has a higher number of water channels and copper fins, which results in a larger volume of water in direct contact with the cooling fins and significantly improves heat transfer. As a result, the HPE-30 achieves significantly better cooling performance, with a performance advantage of up to 4.5K to 6K over the ST30, especially at higher temperatures and fan speeds. Both use the same materials (pure copper), but the HPE-30 is technically advanced and more efficient.

Does that mean it has more openings that might have to be closed with plugs?