The DTK-MRJPOEX Surge Protector by Ditek features a NEMA 4X enclosure with weatherproof connectors for installation in harsh or outdoor environments. When used with STP cabling, the DTK-MRJPOEX requires no earth grounding. Its multistage technology and hybrid design provides superior protection for Ethernet devices. It is compatible with CAT5e, CAT6 and CAT6a cabling infrastructure and exceeds the IEEE Standards for Power over Ethernet (PoE). Design features include shielded RJ45 connectors and liquid-tight cord grips. Other specifications include a surge current rating of 20kA/pair and gigabit data speed with no signal degradation.