The C76374-000 | OCAB-S2-03-B3 from CommScope is a Fiber Optic Attenuator with Attenuation 3 dB, Return Loss 55 dB, Attenuation Tolerance ±0.5 dB, Operating Wavelength 1260 to 1360 nm, Optical Input Power 250 mW. More details for C76374-000 | OCAB-S2-03-B3 can be seen below.