If the photograph is clicked, it grows.

HP 8156A /100 Optical Attenuator 1310/1550nm SM
JPY140,000 1 stock
opt959

InserLoss2.5dB 1250nm-1650nm Singlemode Max60dB
res0.001dB acc+-0.005dB returnloss 45dB
switching speed 20-400ms Max level +23dBm
4Kg

with 81000FI×2

OPT100 Straight Connector