RJ/E Pearl Prepared Cat 7 Ethernet Cables use Solid Long-Grain Copper (LGC) conductors, which completely eliminate the interaction between the wires, one of the biggest sources of distortion in cables, for clearer, more dynamic and more engaged sound . Superior conductor metals minimize distortion by having fewer grain boundaries and fewer impurities (such as oxides) on those boundaries. High density solid polyethylene (PE) insulation helps maintain critical signal pair geometry. Of course, all AudioQuest Ethernet cables respect the directivity inherent in all analog and digital audio cables; arrows on the jacks indicate the direction (from source to destination) for best audio performance.