The F-ADAT-13-03-50 Adaptor Type Attenuator is optimized for operation at either 1310 nm and has a bandwidth of ±40 nm. This compact attenuator have a male FC/PC connector at one end and a female FC/PC connector at the other end, enabling it to be placed in the optical path without additional fiber pigtails and connectors. The 3 dB attenuation is accurate to <±1.0 dB.