Arrowmounts AM-Cat5e-520BK 40' Cat5e RJ45 Ethernet LAN Network Patch Cable, Booted Snagless, Black 40 Ft Cat 5e Cat5e RJ45 Ethernet LAN Network Patch Cable Booted Snag less Black Made of 100% pure copper wire with 50 micron gold plated RJ45 plugs. 24AWG 4pair stranded pure copper. We do not use CCA aluminum wire. Certification: TIA/EIA. RoHS compliant. T-568B standard wiring. Conductor Material/Size: Bare Copper/24AWG. Insulation Material: HDPE. Insulation Thickness: Nominal: 0.186 mm. Insulation Diameter: Nominal: 0.96 mm. Insulation Unaged Elongation: Min. 300%. Electrical Performance - Dielectric Strength of Insulation: 2850 V dc / 2 seconds. Insulation Resistance Test: Min. 5000 Mohm Km. Conductor Resistance: Max. 9.38 ohm/100m at 20 degrees Celsius. Compliance With the Following Standards: All Category 5e Requirements as Per ANSI/TIA, ISO/IEC, and CENELEC EN Standards. ANSI/TIA-568-C.2 Cat.5e. ISO/IEC 2nd Edition 11801 Class D.