**********The copper center conductor / high quality insulation / halogen-free knickschutzh LLE (with RoHS | has very strong robustness*****High performance Cat7 ethernet patch cables are designed with extremely well-matched components for outstanding uniform impedance and very low return loss, providing lower crosstalk, and higher signal-to-noise ratio*****Cat7 Ethernet cable with CM grade PVC jacket is UL listed, complies with TIA/EI568-C. 2, and RoHS compliant*****They support frequencies of up to 600 MHz and are suitable for high-speed 10GBASE-T internet connection for LAN network applications such as PCs, servers, printers, routers, switch boxes, and more, while remaining fully backward compatible with your existing network*****Brand new and manufacturer one year warranty