The BB-100-11-1300/1550-9/125-S-60-3A3A-3-1 from OZ Optics Ltd. is a Fiber Optic Attenuator with Attenuation 80 dB, Insertion Loss 1.5 dB, Optical Power w Up to 2 W, Return Loss 60 dB, Storage Temperature -40 to 85 Degree C. More details for BB-100-11-1300/1550-9/125-S-60-3A3A-3-1 can be seen below.