The FITB79615ZYG | VOA-STA-A-FITB from Fiberinthebox is a Fiber Optic Attenuator with Attenuation 0 to 30 dB, Insertion Loss <1 dB (Initial), Return Loss >55 dB, >65 dB, Operating Wavelength 1260 to 1610 nm. More details for FITB79615ZYG | VOA-STA-A-FITB can be seen below.