ExTell Multi Tube Steel Armored cables are a strong, Industrial grade FO cable with strong Mechanical protection. With an external PE Jacket, the cable is perfect for Direct Burial applications and offers optimum protection against UV. With each core capable of holding upto 12 cores, Multitube FO Cables can accommodate a maximum of 288 Fibers and can be built for OS2, OM1, OM2, OM3, OM4 or OM5 depending on client requirement.