What you are viewing is a SC UPC Fiber Optic Coupler Multimode Network Adapter, to connect SC to UPC multimode cables, this optic coupler adapter is a must have for you!The coupler network adapter is designed to connect two SC fiber simplex patch cables together. The coupler network adapter features compact design, high precision alignment, low insertion and return loss and back reflection. Made of high quality material, the coupler network adapter is durable and reliable for long time use. Practical and reliable, the coupler network adapter will surely give you more than you paid!