Cables To Go LSZH high performance cable is designed for fast Ethernet & Gigabit computer networks that require Enhanced Category 5 cabling for voice/data/video distribution. This cable will handle bandwidth-intensive applications up to 350 M Hz. Meets all CAT5E ANSI/TIA, ISO/IEC & CENELEC EN standards, & drastically reduces both impedance & structural return loss (SRL) when compared to standard 100 M Hz wire.