... FC Male-Female fiber optic attenuator fixed, SM, MM, PC, APC, 5dB, 10dB, 15dB, etc FC/APC 3.0 FC/PC 2.0 FC ... /PC 0.9 FC/APC 0 FC/APC 3.0 FC/PC 2.0 FC/PC 0.9 FC/APC ... 0.9 SC/PC 2.0 SC/APC ... 2.0SC/PC 0.9 SC/APC ... optic attenuator fixed, SM, MM, PC, APC, 5dB, 10dB, 15dB, etc FC, SC, ST, LC type fiber optic ...