The PolyPhaser FCO-MPMSM1230-YL0P is a MPO male connector for 12 fiber single mode applications. The PolyPhaser FCO-MPMSM1230-YL0P is designed for use with a 3.0mm fiber diameter and comes with a yellow color designator to denote single mode usage. The PolyPhaser FCO-MPMSM1230-YL0P is made with a familiar push-pull design for easy insertion and removal. Built to deliver lower insertion loss, PolyPhaser's MPO connectors will provide the dependability and performance required for the most demanding high-speed networks. Order online today!.