Shielded Case:0.25mm thickness Brass with Ni plated Modular housing: Al&Zn Alloy with 30U’’ Tin plated RJ45 Jack Insert: Phosphor bronze with 3 to 50U" gold plated, ≥750 times PCB: FR-4 UL94-V0 IDC Terminal: Phosphor bronze with 30 U" Tin Plated, fit to 22~26AWG, ≥250 times Label Color Code: T568A/B Certificate: ROHS CE