LC to SC 10Gigabit OM3 50/125 Multimode fiber cables are perfect for bringing together two 10G networking products with different interfaces. XENPAK modules use the older SC interface, whereas the X2 modules have the newer higher-density LC conenctor type. This is the cable that would be used to connect these two interfaces together. For most applications, these riser rated cables are a perfect fit. If you need plenum fire rated cables, we have those listed on our site as well. If you do not see a length you require, we have California production capacity to build these cables in only 1-2 days.