Excel Outdoor/indoor OM4 4*50/125 optical fibre backbone cable LSOH black, rodent-proof, the type of device is: multi-mode, the type of cable is: optical fibre backbone cable, according to use: outside/inside, the cable's categorical classification: OM4, the number of optical fibres: OM4 pcs, the diameter of the optic fibre is: 50/125mm, the colour of the cable: black, the sheath of the cable: LSOH, level of protection: black.