The High Directivity Multimode Fiber Attenuator from TTI Fiber Communication Co.,Ltd. is a Fiber Optic Attenuator with Attenuation 1 to 30 dB, Operating Temperature -40 to 75 Degree C, Polarization Dependent Loss =0.1dB, Return Loss PC:=50dB UPC: =55dB APC: =60db, Storage Temperature -40 to 85 Degree C. More details for High Directivity Multimode Fiber Attenuator can be seen below.