This Ultra Spec Cable, Inc. mode conditioning fiber cable allows you to connect your 1000BASE-LX, 1000BASE-LX10, or 1000BASE-LX/LH based equipment to multimode infrastructure and meets all requirements of the IEEE 802.3 standards. Use this if you intend to connect a device over more than 300M of multimode fiber as it correctly offsets the singlemode signal to avoid differential mode dispersion.