This is a 30cm laser-optimized multi-mode fiber (LOMM) MPO/12xLC breakout OM3 multicolored patch cable. It is a 12-colored 0.9mm cable utilizing a male (with pins) MPO connector on one end and 12 male 50/125 multi-mode OM3 LC connectors on the other end. This 40Gig breakout cable is used primarily inside plug-and-play cassette modules. The patch cables are 100% compliant for all of your networking needs. They provide higher speeds and increased bandwidth, compared to conventional twisted-pair copper cable. Each cable is 100% optically tested for insertion loss before you take ownership. Now you have a cost effective solution to your network upgrade needs.