0.55 meter long, 900 micron OD jacketed, 1550nm 8.5/125 SM fiber patchcord terminated with a 8º slant polished & AR coated 1.8mm OD/6mm long ferrule on one end and bare fiber on the other end. SP: -Use Nufern 1550B-HP 8.5/125 single mode fiber and with 6mm long ferrule.