product name: connector or patch cord model No.:ST Type 1 Features: meets IEC 874-10 and CECC BFOC/2.5 compatible with AT&T-STII standard for MM fiber (50/125μm and 62.5/125μm) cable versions: buffered fiber ф 0.9 mm) cable (ф 2 ф 2.5,ф 3mm) duplex cable (2 x ф 2, 2 x ф 2.5, 2 xф 3mm) bayonet coupling, quick and easy-to-use type of polishing: PC SPC UPC APC specifications: ■Insertion Loss:< 0.3dB Typ. : 0.2 dB ■Return Loss: SM: PC polishing: > 40 dB UPC polishing: > 50 dB APC polishing: > 60 dB MM: >35 dB