This NUC LID allows the user to add an additional RJ45 LAN 100mbs.
Tested at its default connectivity setting (100Mbps, full-duplex (via auto-negotiation)), the solution maintained an average throughput of ~95Mbps with 0.0% packet loss.
The unit has also been tested the 10Mbps full-duplex (forced setting), 10Mbps half-duplex (forced setting), and 10Mbps half-duplex (auto-negotiation). Performance was ~9.5Mbps with forced settings, and ~9.0Mbps with auto-negotiation. Packet loss for all scenarios was 0.0%.
The NUC Additional LAN USB Port and RJ45 LID is an acceptable solution to most usages requiring a 10/100Mbps 2nd LAN on the NUC.