Description This 4m MMC-12 APC (Female) to MMC-12 APC (Female) jumper provides 12-fiber OS2 single-mode connectivity for high-density optical networks. It features Jumper polarity and a yellow 2.5mm OFNP plenum jacket for professional-grade deployment. The precision-engineered assembly maintains signal quality in plenum spaces with a maximum IL of ≤ 0.35dB.