The housing material is PC+ABS Duble layer design,pper layer is splitter,ower is for fusion.The fibers distribution clearly,easy to operate. Capacity: 6- 12 cores,C adaptors Can installed. Cable entry points :drop cable (2*mm),pcs for express/cascade cable(∅6 mm -∅ 12 mm) Insulation resistance:500V Operating temperature -40 Connector Loss:( Insertion.repeatbility,interchangeability)0.5dB Retrun Loss:>5dB, UPC>0dB, >0dB