Benefits of an rj45 vs usb when it comes to detachable cabling?
RJ45 allows a more secure connection during gameplay and the NE8MC can add additional security to that connection as well http://www.focusattack.com/neutrik-ne8mc-rj45-data-connector-matte-black/?fullSite=1
Additionally, you have access to legacy devices such as Dreamcast and PS through cables available on our page http://www.focusattack.com/cabling/?fullSite=1
The USB connection is convenient and in some cases, the least invasive port however, the connection is less secure.
Here is a recent mod we did involving the Neutrik port and specialized cable.