HARTING connectors that are compatible with the preLink termination block include: M12 D-coded connector for Fast Ethernet (100 Mbit/s), M12 X-coded connector for Gigabit Ethernet, i.e. 10 Gbit, RJ45 Plug, RJ45 Keystone Jack, HARTING PushPull RJ45 Plug, HARTING har-port RJ45 service port receptacle, and the Han® 3 A industrial connector. All HARTING connectors are 360 degree shielded.