1) Optional Connector: SC / LC / FC / ST / MTRJ / MU/ SMA/ DIN/ E2000 Features: 1) Meets EIA / TIA, IEC NTT and bell core GR 326-CORE Standard 2) Optional Connector: SC / LC / FC / ST / MTRJ 3) PC, UPC, APC polishing 4) 0. 9mm, 2. 0mm, 3. 0mm cable diameter are avaiable 5) Single Mode ( 9/125 )or Multimode ( 50/ 125 or 62. 5/125 )6) Pigtail available 7) Customized Specification are welcome