1.0+/-0.1m long, 3mm OD loose PVC jacketed (Blue color), 5/125um 780nm Panda PM fiber patchcord terminated with an Ultra PC polished E2000 connector on one end with connector key (latch) pre-aligned and locked to PM fiber slow axis and an 8 degrees angle polished 2.5mm OD FC ferrule with metal flange on other side. SP: The polishing angle orientation on the 2.5mm OD ferrule endface is like in FC/APC connectors (polish axis is perpendicular to ferrule metal flange slots direction). This ferrule endface finish could be either curved or flat. PM slow axis is aligned in line with (parallel to) the metal flange's slots. ER is minimum 20dB.