All common fiber types offered (Fiber: 3.0, 2.0, 0.9) Connector ferrule: Zirconia ceramic SM: Singlemode; MM: Multi-mode 100% visual inspection loss: Less than 0.35dB (0.15dB typical), return loss: MM-better than -25dB, SM-better than -55dB Operation/storage temperature: -0 to +75 degrees C 5: 50/125um, 6: 62.5/125um, please replace Y with 5 or 6 for multi-mode XX-replace XX with standard lengths of 01, 02, 03 meters