Low-Smoke Zero-Halogen (LSZH) fiber optic patch jumpers from Cables To Go are designed to lessen the emissions of smoke & halogens when the cable is exposed to extreme temperatures. These fiber patch jumpers are perfect for fast Ethernet, fiber channel, ATM & Gigabit Ethernet applications. Use to connect fiber optic equipment to fiber optic cross-connects, cables & information outlets. Each cable is individually 100% optically inspected & tested for insertion loss & quality. All cables meet or exceed industry specifications.